Observatoire de la planète

Compilation quotidienne d'actualités et de recherche sur l'environnement, orientée observations — ce que mesurent les satellites, les stations et les campagnes de terrain — mise en regard des conclusions et projections du GIEC (AR6).

2026-07-21

Observations vs GIEC

Les derniers relevés publiés (OMM, NOAA, NSIDC, NASA, WGMS…), confrontés aux fourchettes du 6ᵉ rapport d'évaluation. Mise à jour au fil des grandes publications — dernière : 2026-07-21.

⚠ Le GIEC projette des moyennes multi-décennales sous incertitude ; une année isolée ne valide ni n'invalide un scénario. Les statuts ci-dessous décrivent la position de l'observation par rapport à la fourchette AR6, sans extrapolation.

Température moyenne mondiale

fourchette AR6, côté haut

2024 : +1,55 ± 0,13 °C vs 1850-1900 (record) · 2025 : +1,43 à +1,44 °C (± 0,13) · moyenne 2023-2025 : +1,48 °C

2024 est l'année la plus chaude du relevé de 176 ans ; 2025 est 2e ou 3e selon les jeux de données malgré La Niña. Les 11 dernières années (2015-2025) sont les 11 plus chaudes jamais mesurées. Réchauffement d'origine humaine estimé à 1,36 °C en 2024, au rythme inédit de 0,27 °C par décennie (2015-2024).

Repère GIEC

L'AR6 (2021) projette un franchissement du niveau +1,5 °C (en moyenne sur 20 ans) au début des années 2030 dans la quasi-totalité des scénarios d'émissions considérés (SPM B.1.3). Le réchauffement observé 2011-2020 était évalué à +1,09 °C. (GIEC AR6 WG1, Summary for Policymakers)

Lecture Trajectoire observée cohérente avec la fourchette haute de l'AR6 : des années individuelles touchent déjà 1,5 °C, la moyenne décennale s'en approche plus vite que le calendrier médian ne le laissait entendre en 2021.

Observations : OMM — State of the Global Climate 2025 · Forster et al. 2025, Indicators of Global Climate Change 2024 (ESSD)

CO₂ atmosphérique

fourchette AR6, côté haut

427,35 ppm en moyenne annuelle 2025 (Mauna Loa) · juin 2026 : 431,44 ppm

La concentration continue de croître d'environ 2 à 3,5 ppm par an. Les concentrations de CO₂, CH₄ et N₂O ont atteint en 2024 leur plus haut niveau en 800 000 ans (OMM).

Repère GIEC

L'AR6 rappelait des concentrations sans précédent depuis au moins 2 millions d'années. Le budget carbone restant pour 50 % de chances de rester sous +1,5 °C, évalué à 500 GtCO₂ début 2020 par l'AR6, était retombé à 130 GtCO₂ début 2025 selon la mise à jour IGCC — soit environ trois ans d'émissions au rythme courant. (Forster et al. 2025 (ESSD), méthodes AR6)

Lecture Les émissions restent au plus haut : le budget 1,5 °C se consomme au rythme prévu par les scénarios sans inflexion rapide.

Observations : NOAA GML — Mauna Loa CO₂ annual mean · OMM — State of the Global Climate 2025

Niveau moyen des mers

fourchette AR6, côté haut

Rythme actuel ≈ 4,4 mm/an (contre 2,0 mm/an en 1993) · +10 cm depuis 1993

L'altimétrie satellitaire (TOPEX/Poséidon → Sentinel-6) mesure une accélération d'environ 0,8 mm/an par décennie. L'année 2025 isolée n'a vu que +0,8 mm, effet transitoire attribué à La Niña (NASA).

Repère GIEC

L'AR6 mesurait 3,7 [3,2-4,2] mm/an sur 2006-2018 et projette +0,28 à +1,01 m d'ici 2100 selon les scénarios, en jugeant l'élévation irréversible à l'échelle de plusieurs siècles. (GIEC AR6 WG1, chap. 9 (océan et cryosphère))

Lecture Le rythme observé actuel dépasse la valeur AR6 de 2006-2018, conformément à l'accélération que le rapport anticipait.

Observations : NASA Sea Level Change Portal — Global Mean Sea Level · AVISO — Mean Sea Level (3,6 ± 0,3 mm/an depuis 1999)

Banquise arctique

dans la fourchette AR6

Minimum sept. 2025 : 4,60 Mkm² (10e plus bas) · maximum mars 2025 : le plus bas du relevé satellitaire (47 ans)

Les 19 dernières années concentrent les 19 minima les plus bas depuis 1979. Le minimum 2025 reste 1,62 Mkm² sous la moyenne 1981-2010 (l'équivalent de l'Alaska).

Repère GIEC

L'AR6 conclut que l'Arctique sera pratiquement libre de glace en septembre au moins une fois avant 2050 dans tous les scénarios d'émissions considérés (SPM B.2.5). (GIEC AR6 WG1, Summary for Policymakers)

Lecture Déclin de long terme confirmé — le plancher des minima stagne depuis 2007, mais le maximum d'hiver 2025 a battu son record à la baisse.

Observations : NSIDC — 2025 Arctic sea ice minimum · NOAA Arctic Report Card 2025 — Sea Ice

Contenu thermique de l'océan

fourchette AR6, côté haut

Record absolu en 2025 (+24 ± 16 ZJ vs 2024) · 9e record annuel consécutif

Le rythme de réchauffement de l'océan sur 2005-2025 (11,0-12,2 ZJ/an) est plus du double de celui de 1960-2005. Environ 91 % de l'excès d'énergie du système climatique va dans l'océan. Le déséquilibre énergétique de la Terre a lui aussi atteint en 2025 son plus haut niveau depuis 1960.

Repère GIEC

L'AR6 jugeait virtuellement certain que le contenu thermique de l'océan a augmenté depuis les années 1970, l'influence humaine en étant très probablement le moteur principal, et le réchauffement de l'océan profond irréversible à l'échelle des siècles. (GIEC AR6 WG1, chap. 9)

Lecture L'indicateur le plus régulier de tous : il bat son record chaque année depuis neuf ans, sans l'à-coup des variations El Niño/La Niña de la température de surface.

Observations : OMM — State of the Global Climate 2025 (ocean heat content)

Glaciers de montagne

fourchette AR6, côté haut

Bilan de masse 2024/2025 parmi les 5 plus négatifs depuis 1950

8 des 10 pires bilans annuels depuis 1950 sont postérieurs à 2016 (World Glacier Monitoring Service). Pertes exceptionnelles en Islande — année la plus chaude de son histoire — et sur la côte Pacifique de l'Amérique du Nord.

Repère GIEC

L'AR6 conclut que l'influence humaine est très probablement le moteur principal du recul quasi universel des glaciers depuis les années 1990, et que la fonte se poursuivra pendant des décennies même en cas de stabilisation des émissions. (GIEC AR6 WG1, chap. 9)

Lecture L'accélération récente (série 2021-2025) est au-delà de la simple continuité : trois années record ou quasi record consécutives.

Observations : OMM — State of the Global Climate 2025 (glacier mass balance, données WGMS)

La récolte du jour

Fenêtre 168 h · collecte 21 juil. 2026, 18:39 · 15 flux OK.

Items
120
Actualités
57
Recherche
63
Mention GIEC
0

Actualités 57

Presse généraliste et spécialisée — environnement, climat, biodiversité.

  1. The Conversation — Environnement (FR) 21 juil. 2026, 18:10
    Pourquoi l’algue « Ostreopsis » envahit-elle la côte basque chaque été ?

    Que sait-on de la toxicité de cette algue ? Un projet de recherche est en cours pour répondre aux questions qui restent encore en suspens.

  2. The Conversation — Environnement (FR) 21 juil. 2026, 18:04
    Dans le massif des Bauges, le mystère de l’or qu'on trouve au milieu des calcaires

    D’où vient l’or du Chéran, dans le massif des Bauges ? Élément de réponse : il ne s’est probablement pas formé sur place.

  3. The Guardian — Climate crisis 21 juil. 2026, 18:00
    Tick bites are on the rise in the US and UK. Here’s how to protect yourself

    Experts share tips to avoid the blood-sucking pests that can transmit Lyme disease and other illnesses on to humans I won’t go into gory detail about the tick I found latched behind my ear approximately 35 hours after a hike in early June. Suffice it to say, the parasite was well fed, and I was horrified. I am far from alone in making such a disgusting discovery. According to the Centers for Disease Control and Prevention (CDC), emergency room vi

  4. BBC — Science & Environment 21 juil. 2026, 17:57
    Brazil's Amazon sees sharp decline in size of area burned in 2025

    The amount of land burned in the world's largest rainforest was the smallest since MapBiomas records began in 1985.

    Biodiversité
  5. Mongabay 21 juil. 2026, 16:54
    ‘We couldn’t breathe’: DRC villagers revive protest against Perenco over pollution

    “I had diarrhea and dizziness. Food no longer tasted the same. … I wasn’t the only one who noticed it — it was the same for everyone in the village; we couldn’t breathe,” Benoît Packera, secretary of the vigilance committee of Kitombe, told Mongabay. He was recounting what happened in April 2025, when toxic gases […]

  6. BBC — Science & Environment 21 juil. 2026, 15:46
    Parts of the UK move closer to drought

    Eight areas across England are now in prolonged dry weather – the stage before drought.

    Événements extrêmes
  7. Mongabay 21 juil. 2026, 15:11
    Extreme heat is eroding health, productivity and incomes of Dhaka’s informal workers

    DHAKA — On June 28, as the afternoon sun beat down on Bangladesh capital Dhaka’s sprawling Tejgaon neighborhood, Samiha Begum gathered her two school-aged children and headed for the shade of Hatirjheel Lake. Their narrow one-room home in a nearby slum had become unbearable. She said, “The room starts heating up as soon as the […]

    Événements extrêmes
  8. Mongabay 21 juil. 2026, 15:02
    Report reveals Cambodia’s appetite for tigers, rhinos and other endangered wildlife

    Tiger bone wines in exquisite bottles. Tiger cubs sold alive as pets or served as a culinary delicacy alongside pangolin and cobra meat at exclusive restaurants. Rooms filled with rhino horns and elephant ivory, stacks of freshly skinned tiger pelts and bags of pangolin scales. Jewelry made from protected corals and ivory. This is just […]

    OcéanBiodiversité
  9. The Guardian — Climate crisis 21 juil. 2026, 13:45
    We received no alert, say leaders of First Nations communities razed by Canadian wildfires

    Chiefs in Ontario say they were left to self-evacuate before homes burned to ground, after being told there was no imminent threat Fast-moving wildfires have burned two First Nations communities in Canada to the ground, as members said they were left to self-evacuate without government help or emergency alerts. Thirteen communities in Ontario province have been ordered to evacuate because of wildfires, most of them First Nations. The Ontario prem

    Événements extrêmes
  10. Mongabay 21 juil. 2026, 13:39
    Pangolin DNA study links local wild meat markets to global trafficking networks

    Pangolin scales and other body parts trafficked internationally appear to come from the same areas that supply the animals for local wild meat markets, a new study has found. It created a DNA database and location-prediction model for three threatened species: the white-bellied (Phataginus tricuspis), Sunda (Manis javanica) and Chinese (Manis pentadactyla) pangolins. Pangolins are […]

    Biodiversité
  11. BBC — Science & Environment 21 juil. 2026, 13:13
    UK's bumblebees are struggling in heatwaves

    UK bumblebees could suffer sharp falls in their numbers as heatwaves become more frequent.

    Température
  12. Mongabay 21 juil. 2026, 13:10
    What happened to the vessels Panama busted in 2025 for fishing in its flagship MPA?

    On Jan. 22, 2025, Panama’s government announced it had caught 16 vessels fishing illegally inside the country’s flagship marine protected area, declaring it the largest such enforcement operation in the country’s history. Publicizing the case helped Panama show its commitment to ensure 30% of its waters are “effectively conserved and managed” by 2030, in compliance […]

    Océan
  13. The Guardian — Climate crisis 21 juil. 2026, 12:09
    Rescuers in Afghanistan search for missing and dead after flash floods destroy homes

    National disaster agency confirms ‘severe financial and human losses’ in eastern province of Nuristan Rescue crews in Afghanistan are searching for survivors and bodies among the rubble of houses destroyed by devastating flash floods that authorities said had killed nearly two dozen people and left more than 100 people missing. The Afghanistan national disaster management authority said on Tuesday that 23 people had died, 80 had been injured and

    Événements extrêmes
  14. Mongabay 21 juil. 2026, 10:47
    As Sri Lanka braces for El Niño, national parks are a concern amidst encroachment

    COLOMBO — Around 14% of Sri Lanka’s total land area is dedicated to wildlife protected areas, which includes more than 20 national parks. However, due to natural and anthropogenic factors, protected species such as leopards (Panthera pardus kotiya) and elephants (Elephas maximus maximus) living in these protected areas face continuous threats as their habitats continue […]

    Biodiversité
  15. Mongabay 21 juil. 2026, 10:40
    Activists allege Cambodia has resumed sea sand exports to Singapore

    BANGKOK — Environmental activism group Mother Nature Cambodia on July 14 posted a new video alleging that Cambodia has quietly resumed sand exports to Singapore after the trade was banned in 2017. The prohibition followed a scandal involving environmental degradation along Cambodian rivers linked to shipments of sand sold to Singapore for land reclamation projects. […]

  16. Mongabay 21 juil. 2026, 09:00
    Zero roadkill as Amazon canopy bridges secure 15,000 crossings

    For some of the world's rarest monkeys, the path to survival now runs through a simple network of ropes.

  17. Le Monde — Climat 21 juil. 2026, 05:00
    Piqûres de moustiques : toutes les réponses à vos questions

    « Sus aux moustiques ! » (1/4). Pourquoi les piqûres de moustiques provoquent-elles des démangeaisons ? Certaines personnes sont-elles davantage ciblées que d’autres ? Du mécanisme de la réaction cutanée à la transmission des virus, ce qu’il faut savoir sur ces insectes qui rythment nos étés.

  18. Mongabay 21 juil. 2026, 02:41
    Renato Moraes de Jesus was a pioneer of Atlantic Forest restoration in Brazil

    In 1977 a young forest engineer arrived at a neglected tract of Atlantic Forest in northern Espírito Santo. A mining company had acquired the property as a source of hardwood for railway sleepers. Two hundred hectares had already been cut. Some specialists proposed harvesting more of the forest or replacing it with eucalyptus. The new […]

    Biodiversité
  19. Le Monde — Climat 21 juil. 2026, 02:06
    Incendies au Canada : déjà 3 millions d’hectares ravagés par les flammes, une saison des feux de forêt « intense »

    Si la puissance des incendies n’atteint pas celle de la saison 2023, qui avait été dévastatrice, de nouveaux records pourraient tout de même être battus cette année, notamment à cause de faibles précipitations dans une partie du pays.

    Événements extrêmesBiodiversité
  20. BBC — Science & Environment 21 juil. 2026, 02:01
    Bumblebees are struggling in UK heatwaves - but you can help them

    The furry bodies of UK bumblebees are specially adapted for cold weather - making heatwaves a struggle.

    Température
  21. Mongabay 21 juil. 2026, 01:38
    Tourism and infrastructure threaten habitat of India’s Himalayan salamanders

    Every monsoon season, in the misty hills of Darjeeling, in West Bengal, eastern India, the elusive Himalayan salamander emerges from beneath the forest floor. The ancient amphibians (Tylototriton himalayanus) engage in a delicate dance, a mating ritual that lasts up to 90 minutes before they attach their eggs to semi-submerged vegetation, such as denseflower knotweed […]

    Biodiversité
  22. Mongabay 20 juil. 2026, 22:31
    Malaysia clamps down on toxic trade with total e-waste import ban

    KLANG, Malaysia — On the morning of July 7, 2026, a shipping container declared to contain tin ore caught fire shortly after offloading at Port Klang, Malaysia. After firefighters doused the flames, they pried open the steel doors and found no industrial metals — only a cargo packed full of scorched electrical and electronic waste, […]

  23. The Guardian — Climate crisis 20 juil. 2026, 21:00
    Slowdown in Arctic ice melt ends after largest winter decline on record

    Scientists recorded slower reduction over past 20 years, but study finds this was ‘temporary rather than sustained’ A previously recorded slowdown in Arctic sea ice decline has ended, according to a new study, with the largest year-to-year wintertime reduction ever recorded. In a study published last summer, researchers found that melting sea ice in the Arctic had slowed down over the past 20 years, with no statistically significant decline in it

    Cryosphère
  24. Mongabay 20 juil. 2026, 20:43
    WHO evacuated health workers from Ebola treatment center due to armed clashes

    On July 15, gunfire erupted between armed groups near an Ebola Treatment Center (ETC) in Nyankunde (or Nyakunde), located 45 kilometers (28 miles) southwest of Bunia in the eastern Democratic Republic of Congo (DRC). Following the fighting, medical personnel from the World Health Organization (WHO), Africa CDC and the NGO Samaritan’s Purse evacuated from Nyankunde, […]

  25. Mongabay 20 juil. 2026, 20:23
    Tiny trackers reveal where migratory shorebirds need protection across Africa

    They have names like Victoria, Makgadikgadi, Wembere and Dwarskersbos — but unlike their namesakes, they’re not landmarks in Africa. Instead, they’re small birds flying halfway across the world, showing conservationists the places that should be protected to sustain them on their journeys. Earlier this year, an international team of scientists and conservationists trapped 20 curlew […]

  26. BBC — Science & Environment 20 juil. 2026, 20:16
    Canadian wildfires rage as Trump warns Carney again over 'poisoning' US air

    The US president raised the issue with the the Canadian prime minister while the pair attended the World Cup Final in New Jersey.

    Événements extrêmes
  27. Le Monde — Climat 20 juil. 2026, 18:39
    L’été de tous les records ne surprend pas les climatologues : « On est entrés dans une zone dangereuse »

    Records de chaleur, sécheresse historique, incendies de grande ampleur… Derrière une période estivale qui paraît dépasser toutes les limites, les climatologues voient surtout la confirmation des effets attendus du réchauffement. Seul l’enchaînement des canicules les intrigue.

    TempératureÉvénements extrêmes
  28. Mongabay 20 juil. 2026, 18:13
    Clean cooking expands at record pace in Africa, but lags behind population growth

    Sub-Saharan Africa is on track to record its fastest-ever annual expansion in access to clean cooking in 2026, according to a new report by the International Energy Agency. But population growth continues to outpace those gains, leaving more than 1 billion people without access to clean cooking. The region is home to the world’s largest […]

  29. Carbon Brief 20 juil. 2026, 18:11
    Q&A: What the EU’s carbon market review means for climate action

    The European Commission has put forward new plans to cut emissions under the EU carbon... The post Q&A: What the EU’s carbon market review means for climate action appeared first on Carbon Brief .

    Carbone & émissions
  30. Mongabay 20 juil. 2026, 17:52
    Scientific & traditional knowledge are key for effective & community-centered conservation (commentary)

    A group of women often climbs steep cliffs to set up camera traps for snow leopards around Kibber in Spiti Valley, India. The senior women know the landscape intimately, like what areas the animals use and where cameras are likely to capture movement. They have walked these mountains all their lives and know how to […]

    Cryosphère
  31. The Guardian — Climate crisis 20 juil. 2026, 17:00
    Australian ski resorts smash July climate records with temperatures 12C above average

    Resorts in New South Wales and Victoria face a warm and dry start to the season with only sporadic falls of natural snow in many alpine areas Follow our Australia news live blog for latest updates Get our breaking news email , free app or daily news podcast Alpine ski resorts in New South Wales and Victoria saw climate records shattered at the weekend with maximum temperatures up to 12C above average. Ski areas of Mount Hotham and Falls Creek set

    TempératureCryosphère
  32. The Guardian — Climate crisis 20 juil. 2026, 16:00
    ‘A public health emergency waiting to occur’: how US industry groups spent years fighting who gets to measure toxic air

    Air polluters try to ensure toxic emissions happen far from monitors – but the people who live nearby still feel it Kimbrelle Kyereh lives just a few hundred feet from the massive chemical storage tanks in St Rose, in south-eastern Louisiana . Oily fumes sometimes drift into her home, bringing headaches, nausea and insomnia. On one such night, she grabbed her son at 3am and fled to an all-night Ihop. In 2023, after years of coping with the noxiou

    Carbone & émissions
  33. BBC — Science & Environment 20 juil. 2026, 14:25
    The hunger-striking engineer demanding education reforms in India

    Climate activist Sonam Wangchuk has a long history of challenging the status quo and refusing food to highlight his causes.

  34. The Guardian — Climate crisis 20 juil. 2026, 13:00
    Prickly pears, avocados and lemons: how rainwater harvesting is feeding Mexico City’s gardens and homes

    Thousands of low-income households are benefiting from a simple system that captures and filters rainfall from the city’s roofs Walking up a steep hill to a small informal settlement of about 45 houses in Cristo Rey, above San Gregorio Atlapulco in Mexico City, Ana Aparicio Bahena arrives at her simple home. As she walks through her lush, verdant garden, she points out plants such as the prickly pear, cactus leaves with tiny, hair-like spines, an

  35. Le Monde — Climat 20 juil. 2026, 12:30
    Réchauffement climatique : « Changer de méthode, c’est d’emblée agir en très grand, et c’est possible »

    Un collectif de chercheurs et de spécialistes de la forêt estime, dans une tribune au « Monde », que l’atténuation du changement climatique n’est pas une gageure. Le rôle que pourraient jouer les forêts dans une telle stratégie en est un bon exemple.

    TempératureBiodiversité
  36. BBC — Science & Environment 20 juil. 2026, 10:20
    Going with the flow: Renewable energy battery breakthrough

    A 3D-printed battery designed at Queen's University Belfast could speed up energy storage research.

  37. Le Monde — Climat 19 juil. 2026, 16:00
    Du Chili au Brésil, les premiers effets dévastateurs de l’arrivée d’El Niño en Amérique du Sud

    De fortes tempêtes causant des inondations frappent le Chili depuis le 15 juillet, premiers signes de l’installation du phénomène climatique en 2026. L’Uruguay et le Brésil connaissent aussi des précipitations intenses.

    Événements extrêmes
  38. The Conversation — Environnement (FR) 19 juil. 2026, 11:22
    Pourquoi la transition écologique fâche-t-elle les campagnes ?

    Les politiques climatiques suscitent une opposition particulièrement vive hors des grandes villes. Mais d’où vient ce mécontentement ? Et comment y répondre ?

  39. The Guardian — Climate crisis 19 juil. 2026, 06:25
    Canefields to ocean to rolling hills: vision splendid of 135km northern NSW rail trail short-changed

    Despite the backing of councils in a region in dire need of support, the federal government has rejected a $42m grant request to complete the trail’s 54km missing link Get our breaking news email , free app or daily news podcast There are glow-worms in the old train tunnel if you look hard enough into the deepest, darkest black, Paul Hixon says. The visitor from Brisbane is cycling the Murwillumbah to Crabbes Creek section of the northern rivers

    Océan
  40. Le Monde — Climat 19 juil. 2026, 05:30
    Après les feux, le lent retour de la forêt : « On a le sentiment qu’il n’y a plus du tout de vie, mais en réalité il y en a encore »

    Difficiles à quantifier, les conséquences écologiques des incendies varient en fonction de nombreux critères. L’intensité et la fréquence des feux peuvent être particulièrement délétères pour les écosystèmes.

    Événements extrêmesBiodiversité
  41. Le Monde — Climat 19 juil. 2026, 05:00
    Les canicules à répétition font exploser l’écoanxiété et la colère des jeunes : « J’ai l’impression qu’on est entrés dans une dystopie »

    Dans le sillage de la troisième vague de chaleur qui s’est abattue sur la France depuis mai, la frustration et l’angoisse s’imposent chez une partie des jeunes générations, confrontées à « l’été le plus frais du reste de leur vie ».

    Température
  42. BBC — Science & Environment 18 juil. 2026, 19:29
    Trump threatens new Canada tariffs over fires sending 'filthy' air into US cities

    Canadian leader Mark Carney says both the US and Canada have an equal responsibility to fight climate change, which experts say are worsening wildfire conditions.

    Événements extrêmes
  43. BBC — Science & Environment 18 juil. 2026, 19:18
    Toronto, New York and Washington top list of most polluted cities as wildfires burn

    Canadian officials say that fire activity in Ontario is beginning to ease, with air quality expected to improve in US cities too.

    Événements extrêmes
  44. The Conversation — Environnement (FR) 18 juil. 2026, 09:58
    Dengue, Zika, chikungunya : les moustiques invasifs coûtent des milliards, la prévention reste à la traîne

    Les maladies transmises par les moustiques Aedes ont engendré au moins 94,7 milliards dollars de pertes dans le monde. Les estimations hautes suggèrent elles un coût total de plus de 300 milliards.

  45. Le Monde — Climat 18 juil. 2026, 06:00
    Après trois canicules, des Français sidérés et inquiets : « L’année prochaine ça va être pire, comment on va faire ? »

    De la Bretagne aux Bouches-du-Rhône, de Paris à Périgueux, les Français ont découvert leur vulnérabilité aux températures extrêmes qui ont touché durablement leur pays ces dernières semaines.

    TempératureÉvénements extrêmes
  46. Le Monde — Climat 18 juil. 2026, 06:00
    Alexis Jenni, écrivain : « Les branches noircies des arbres dressées vers le ciel deviennent des membres implorants »

    Face aux incendies qui ravagent les forêts, le romancier et essayiste rappelle que ce n’est pas qu’un écosystème qui s’effondre sous nos yeux, mais « notre milieu même ». Pendant ce temps, déplore-t-il, dans une tribune au « Monde », les responsables politiques se montrent plus empressés à défaire les avancées environnementales qu’à protéger véritablement les bois.

    Événements extrêmesBiodiversité
  47. Le Monde — Climat 17 juil. 2026, 18:00
    A Bordeaux, entre deux vagues de chaleur, les équipes de l’hôpital Pellegrin sous forte pression

    « Coup de chaud » et détresse respiratoire… Les différents services du CHU ont dû serrer les rangs pour prendre en charge les patients souffrant des effets de la canicule. Grâce, notamment, au protocole de « refroidissement thérapeutique », la situation semble maîtrisée.

    Température
  48. Carbon Brief 17 juil. 2026, 14:38
    Debriefed 17 July 2026: UK ‘firewave’ | Fossil-fuelled heat deaths | London’s Natural History Museum spotlights climate

    Welcome to Carbon Brief’s DeBriefed. An essential guide to the week’s key developments relating to climate... The post Debriefed 17 July 2026: UK ‘firewave’ | Fossil-fuelled heat deaths | London’s Natural History Museum spotlights climate appeared first on Carbon Brief .

    Carbone & émissions
  49. Carbon Brief 17 juil. 2026, 13:17
    Q&A: Europe’s May and June heatwave deaths – and how they were counted

    Recent weeks have seen a flurry of reports from public health authorities and scientists that... The post Q&A: Europe’s May and June heatwave deaths – and how they were counted appeared first on Carbon Brief .

    TempératureCarbone & émissions
  50. Le Monde — Climat 17 juil. 2026, 06:30
    Six livres sur les oiseaux à feuilleter sur la plage ou en forêt

    Chaleur humaine vous propose six ouvrages pour mieux connaître les oiseaux les plus proches de nous, et pour découvrir notre série d’épisodes « Envole-Moi »

    Biodiversité
  51. The Guardian — Climate crisis 17 juil. 2026, 06:00
    As the UK and Europe battle deadly wildfires, what lessons can Australia offer?

    Knowledge learned over more than a century in Australia is being tested by worsening fires. It’s a familiar narrative around the world The violent hot red flames of deadly wildfires across the UK and Europe and scenes of panicked communities fleeing homes could not, at least geographically, be further away for Jan Harris. But sitting in her new home at Reedy Swamp in rural New South Wales in Australia, the 67-year-old has found herself in tears.

    Événements extrêmes
  52. Le Monde — Climat 16 juil. 2026, 14:00
    Quelle application météo utilisez-vous ? Racontez-nous

    De nombreux sites et applications, gratuits comme payants, font désormais concurrence à Météo-France. Vous utilisez un de ces services ? Dites-nous pourquoi.

  53. Le Monde — Climat 16 juil. 2026, 11:00
    El Niño pourrait faire bondir l’usage de la climatisation et poser « des défis immédiats » aux systèmes électriques, selon l’Agence internationale de l’énergie

    L’organisation appelle à améliorer l’efficacité des climatiseurs et à mettre en place des réponses politiques globales pour répondre aux besoins croissants de refroidissement.

  54. The Conversation — Environnement (FR) 16 juil. 2026, 10:31
    Percevoir les conséquences immédiates du changement climatique suffit-il pour changer les comportements ?

    Cet été, la France subit de plein fouet les conséquences directes du changement climatique. Cela peut-il être utile pour modifier les comportements ? La réponse est moins évidente qu’il n’y paraît.

  55. The Conversation — Environnement (FR) 16 juil. 2026, 10:27
    Les refuges climatiques seront utiles s’ils n’oublient pas de faire de la chaleur un objet politique

    Notamment à condition de les concevoir et de les déployer avec des critères d’accessibilité, d’hospitalité et de justice socioécologique. En bref, d’en faire des objets politiques.

  56. Le Monde — Climat 15 juil. 2026, 20:01
    La France, éreintée par les canicules, adopte une feuille de route pour être neutre en carbone en 2050, qui devra démontrer sa crédibilité

    Mercredi, le ministère de la transition écologique a présenté la troisième stratégie nationale bas carbone, le document qui fixe le cap de la réduction des émissions de gaz à effet de serre jusqu’en 2050. Les objectifs sont très ambitieux au regard des politiques menées jusqu’à présent.

    TempératureCarbone & émissions
  57. Carbon Brief 15 juil. 2026, 18:04
    UK withdraws millions in funding from world’s second-largest rainforest in Congo

    The UK has abandoned projects worth tens of millions of pounds that were meant to... The post UK withdraws millions in funding from world’s second-largest rainforest in Congo appeared first on Carbon Brief .

    Carbone & émissionsBiodiversité

Recherche 63

Revues et institutions scientifiques — articles, jeux de données, observations.

  1. Earth System Science Data 21 juil. 2026, 18:13
    Deep Learning-Based 4D Reconstruction of Arctic Ocean Hydrography and derived Geostrophic Currents from Satellite and In Situ Observations

    Deep Learning-Based 4D Reconstruction of Arctic Ocean Hydrography and derived Geostrophic Currents from Satellite and In Situ Observations Nicolas Werner-Pelletier, Júlia Crespin, Aleida Rosquete, Maria Sánchez-Urrea, Nina Hoareau, Mario Martin, and Marta Umbert Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-519,2026 Preprint under review for ESSD (discussion: open, 0 comments) The Arctic Ocean is changing rapidly, but many are

    OcéanCryosphère
  2. Earth System Science Data 21 juil. 2026, 18:13
    Glacial Lake Observatory (GLO): annual dataset of glacial lakes in Nepal and transboundary catchments (2017–2024)

    Glacial Lake Observatory (GLO): annual dataset of glacial lakes in Nepal and transboundary catchments (2017–2024) Lauren D. Rawlins, C. Scott Watson, Rakesh Bhambri, Nitesh Khadka, and Mohan B. Chand Earth Syst. Sci. Data, 18, 5143–5165, https://doi.org/10.5194/essd-18-5143-2026, 2026 Glacial lakes are expanding as glaciers melt in High Mountain Asia. These lakes store meltwater but can trigger dangerous outburst floods (GLOFs), threatening

    CryosphèreÉvénements extrêmes
  3. Phys.org — Earth 21 juil. 2026, 16:20
    How community-led health and livelihood programs helped protect rainforests during the pandemic

    As COVID-19 disrupted rural economies, communities living near protected rainforests faced rising uncertainty about jobs, health and basic needs. A new study in The Lancet Planetary Health shows that when communities were supported by health and livelihood programs they designed with local nongovernmental organizations, both people and ecosystems were more resilient.

    Biodiversité
  4. Phys.org — Earth 21 juil. 2026, 16:20
    Geophysics brings clarity to the potential of natural hydrogen

    Natural hydrogen is considered a potential low-carbon energy source. But how much is generated underground—and how quickly? An international research team led by the LIAG Institute for Applied Geophysics in Hannover has published the first process-based estimates for the Western Pyrenees and Northern California in Nature Communications. The calculated production rates are lower than earlier theoretical estimates. The study's new evaluation m

    Carbone & émissions
  5. Phys.org — Earth 21 juil. 2026, 15:20
    Triassic inferno: Fires raged across Europe for millennia during past global warming

    The end-Triassic mass extinction, 201 million years ago, is linked to volcanism that resulted from the break-up of Pangea and which pumped out vast amounts of CO2 into the atmosphere, causing extreme global warming of 5 to 10 degrees Celsius. As a result, tree-dominated vegetation collapsed and the highly disturbed landscapes were colonized by ferns that formed savannahs across large swaths of what is now Northwest Europe.

    TempératureCarbone & émissionsÉvénements extrêmesBiodiversité
  6. Eos (AGU) 21 juil. 2026, 15:11
    Slums are bearing the brunt of the climate crisis—and devising solutions

    As temperatures rise, it is the poor who suffer most. The coping strategies of those living in informal settlements may hold lessons for cities of the future.

    Température
  7. ScienceDaily — Climate 21 juil. 2026, 14:55
    Ancient mystery on K’gari as world’s largest sand island lakes dried up during rainy era

    Ancient sediment reveals that some of K’gari’s deepest lakes vanished around 7,500 years ago, despite unusually heavy rainfall. The surprising discovery suggests changing winds and future climate shifts could threaten the sacred lakes known as the Eyes of K’gari.

  8. ScienceDaily — Climate 21 juil. 2026, 14:39
    China’s Chang’e-6 reveals why solar wind hits the Moon’s two sides differently

    China’s Chang’e-6 samples have uncovered a surprising difference between the Moon’s two hemispheres. Solar wind particles penetrated deeper into the far-side soil because Earth’s magnetosphere slows the particles that reach the near side. Noble gases locked inside the lunar regolith preserved evidence of this uneven bombardment. These gases may even help scientists reconstruct the ancient history of Earth’s magnetic shield.

  9. The Cryosphere 21 juil. 2026, 13:41
    Investigating the drivers of wintertime Southern Ocean sea-ice leads using random forest algorithms

    Investigating the drivers of wintertime Southern Ocean sea-ice leads using random forest algorithms Umesh Dubey, Sascha Willmes, and Günther Heinemann The Cryosphere, 20, 4017–4035, https://doi.org/10.5194/tc-20-4017-2026, 2026 Cracks and openings in sea ice, called leads, play an important role in regulating heat exchange between ocean and atmosphere, affecting global climate patterns. This study used a machine learning model trained on wi

    OcéanCryosphèreBiodiversité
  10. The Cryosphere 21 juil. 2026, 13:41
    Brief communication: Temperature-driven shrinkage of a disappearing Himalayan glacier

    Brief communication: Temperature-driven shrinkage of a disappearing Himalayan glacier Koji Fujita and Rijan B. Kayastha The Cryosphere, 20, 4005–4015, https://doi.org/10.5194/tc-20-4005-2026, 2026 Glacier AX010 in Nepal, monitored since the 1970s, has been shrinking at an accelerating rate, mainly due to rising temperatures. Drone surveys, modeling, and reanalysis data show mass loss began in the early 1970s and intensified after 2000. Whil

    TempératureCryosphère
  11. Phys.org — Earth 21 juil. 2026, 10:00
    Fires in Brazil's Amazon dropped to historic low in 2025

    Forest fires in the Brazilian Amazon fell to a historic low in 2025 after peaking the previous year, according to a report published Tuesday.

    Biodiversité
  12. Phys.org — Earth 21 juil. 2026, 03:00
    Eight lifesaving ways to improve wildfire risk management

    As the flames advanced toward the village of Bédar in Spain's Almería province, the mayor gave a desperate order to ring the church bells to warn residents. It was not enough. The July 9 Los Gallardos fire, which claimed 13 lives and burned 7,000 hectares (17,300 acres), was Spain's third-deadliest on record.

    Événements extrêmes
  13. Nature Climate Change 21 juil. 2026, 02:00
    Temporal horizons in US climate change news
  14. Nature Climate Change 21 juil. 2026, 02:00
    Reform preferences of key actors in the UNFCCC process
  15. Communications Earth & Environment 21 juil. 2026, 02:00
    Towards a theory for Earth’s albedo stability and hemispheric symmetry in the 21st Century
  16. Phys.org — Earth 20 juil. 2026, 21:41
    Canada faces one of its most intense fire seasons

    With nearly 1,000 active fires and an area as large as Belgium already burned, Canadian Prime Minister Mark Carney says his country is facing one of the "most intense" wildfire seasons in its history.

    Événements extrêmes
  17. Phys.org — Earth 20 juil. 2026, 21:40
    Surfing webcams help demystify Oregon's coastal fog

    A summer beach day in Oregon often involves a cool, gray blanket of fog that not only shapes the experience of beachgoers but also affects the coastal and inland environment. Now, commercially available surfing webcams are helping scientists measure Oregon's coastal fog, according to a study from the University of California, Davis, in collaboration with the USDA Forest Service.

    Biodiversité
  18. Eos (AGU) 20 juil. 2026, 21:29
    Making Weather and Climate Information Reach the Communities that Need It

    Many at-risk communities remain unreached by forecasts due to barriers in language, access, and trust in information systems. A new study looks at how to overcome these.

  19. Phys.org — Earth 20 juil. 2026, 21:00
    Arctic winter sea ice returns to significant decline, ending the temporary slowdown

    New analysis shows that a "pause" in Arctic winter sea ice decline seen in the early 2020s has ended following record lows in 2025 and early 2026. The study, led by the University of Southampton in collaboration with the National Oceanography Center (NOC), adds the most recent satellite observations to sea ice coverage trends during the winter growth and peak phases of the Arctic sea ice cycle.

    OcéanCryosphère
  20. Phys.org — Earth 20 juil. 2026, 19:20
    Microplastic tire pollution found in Brisbane balcony dust

    Tire particles and potentially toxic tire chemical additives have been found in dust collected from Brisbane residential balconies. University of Queensland researchers examined the balcony dust from homes across inner-city, suburban and near-road settings to see how traffic-related pollution traveled from streets to residential environments.

  21. Earth System Science Data 20 juil. 2026, 18:13
    Decade-long isotope dataset of rainfall and non-rainfall waters in the central Namib Desert

    Decade-long isotope dataset of rainfall and non-rainfall waters in the central Namib Desert Yue Li, Eugene Marais, and Lixin Wang Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-170,2026 Preprint under review for ESSD (discussion: open, 0 comments) We investigated water availability in the hyper-arid Namib Desert by collecting long-term data on rainfall, fog, and dew inputs. Our research presents a rare, decade-long dataset of s

  22. Earth System Science Data 20 juil. 2026, 18:13
    Statewide Forest Monitoring Data for California

    Statewide Forest Monitoring Data for California Christopher B. Anderson and David C. Marvin Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-255,2026 Preprint under review for ESSD (discussion: open, 0 comments) The California Forest Observatory, launched in 2020, is a satellite observation system for mapping vegetation fuel distributions, regrowth dynamics, and habitat structure across the state. This paper describes the technol

    Biodiversité
  23. Earth System Science Data 20 juil. 2026, 18:13
    A 21-year global dataset of particle number concentrations for aerosol-cloud interaction studies

    A 21-year global dataset of particle number concentrations for aerosol-cloud interaction studies Aino Ovaska, Daniel Holmberg, Elio Rauth, Mansour Alghamdi, Paulo Artaxo, Eija Asmi, John Backman, Benjamin Bergmans, Matthew Boyer, Liezl Bredenkamp, Maurizio Busetto, Delano Campos De Oliveira, Juan Andrés Casquero-Vera, Darius Ceburnis, Tak Chan, Tommy Chan, Sebastien Conil, Daniele Contini, Suzanne Crumeyrolle, Valentin Duflot, Kostas Eleftheriadi

  24. Earth System Science Data 20 juil. 2026, 18:13
    GEM-Forest: A Global satellite EMbedding–based map of forests and tree crops for 2020

    GEM-Forest: A Global satellite EMbedding–based map of forests and tree crops for 2020 Daniel Paluba, Valerio Marsocci, Katarína Onačillová, Yarin Tatiana Puerta Quintana, and Adam Hastie Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-495,2026 Preprint under review for ESSD (discussion: open, 0 comments) We created a new global map of forests and tree crops for 2020 at 10 m resolution using satellite embeddings. After testing ma

    Biodiversité
  25. Earth System Science Data 20 juil. 2026, 18:13
    The DTU25 mean sea surface: from and for SWOT

    The DTU25 mean sea surface: from and for SWOT Bjarke Nilsson, Ole Baltazar Andersen, and Per Knudsen Earth Syst. Sci. Data, 18, 5027–5051, https://doi.org/10.5194/essd-18-5027-2026, 2026 The average height of the sea surface is important to understand if we are to accurately understand either the dynamic ocean or improve our understanding of the shape of the earth's surface. Currently we have been able to understand this to a certain degree

    Océan
  26. Earth System Science Data 20 juil. 2026, 18:13
    Unveiling the deep ocean warming: observed bottom ocean dataset across Mediterranean Sea

    Unveiling the deep ocean warming: observed bottom ocean dataset across Mediterranean Sea Nadia Lo Bue, Beatrice Giambenedetti, Davide Embriaco, Paolo Bagiacchi, Claudia Fratianni, Riccardo Vagni, and Giuditta Marinaro Earth Syst. Sci. Data, 18, 5093–5115, https://doi.org/10.5194/essd-18-5093-2026, 2026 We present a set of long-term, high-resolution oceanographic datasets collected by benthic observatories in the deep Mediterranean Sea. Thes

    TempératureOcéan
  27. Earth System Science Data 20 juil. 2026, 18:13
    Regional Oceanographic Database (BaRDO) for the Argentine Continental Shelf

    Regional Oceanographic Database (BaRDO) for the Argentine Continental Shelf Ana G. Baldoni, Graciela N. Molinari, and Raúl A. Guerrero Earth Syst. Sci. Data, 18, 5053–5067, https://doi.org/10.5194/essd-18-5053-2026, 2026 This paper presents information on physical data collected over the past 47 years by Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) research vessels, primarily from the Argentine Continental Shelf. The m

    Océan
  28. Earth System Science Data 20 juil. 2026, 18:13
    The Greenland GNSS Network (GNET): geodetic grade GNSS measurements of Greenland's 3D bedrock displacement from 1995–2025

    The Greenland GNSS Network (GNET): geodetic grade GNSS measurements of Greenland's 3D bedrock displacement from 1995–2025 Christian Solgaard, Finn Bo Madsen, Malte Winther-Dahl, Thomas Henry Nylen, Danjal Longfors Berg, Ole Bjerregaard, Javed Hassan, Per Knudsen, Michael Bevis, and Shfaqat Abbas Khan Earth Syst. Sci. Data, 18, 5117–5142, https://doi.org/10.5194/essd-18-5117-2026, 2026 The Greenland GNSS (Global Navigation Satellite Systems)

    Cryosphère
  29. Earth System Science Data 20 juil. 2026, 18:13
    Jingwei-Nutrients: a global spatiotemporal reconstruction of ocean nutrients (1965–2023) using multi-task deep learning

    Jingwei-Nutrients: a global spatiotemporal reconstruction of ocean nutrients (1965–2023) using multi-task deep learning Zhaokun Wang, Bin Lu, Yi Xin, Takamitsu Ito, Lei Zhou, Lijing Cheng, Yuanlong Li, Xinbing Wang, and Meng Jin Earth Syst. Sci. Data, 18, 5069–5092, https://doi.org/10.5194/essd-18-5069-2026, 2026 We present Jingwei-Nutrients, a global monthly data product of ocean nitrate, phosphate, and silicate from 1965 to 2023 down to 2

    Océan
  30. Phys.org — Earth 20 juil. 2026, 17:20
    Food labeling combined with higher prices for carbon-intensive foods could help reduce UK greenhouse gases by 5%

    Economists say labeling supermarket food to show its environmental impact, combined with taxing the most carbon-intensive items, could slash UK greenhouse gas emissions by almost 5% while generating net gains for society.

    Carbone & émissions
  31. Phys.org — Earth 20 juil. 2026, 15:50
    Swiss researchers hoard vast trove of NASA climate data

    Researchers have copied massive quantities of publicly available climate and environmental data from NASA onto a Swiss supercomputer to train artificial intelligence models—and for safekeeping amid U.S. funding cuts.

  32. ScienceDaily — Climate 20 juil. 2026, 14:29
    Earth’s waters are quietly running out of oxygen, scientists warn

    Oxygen is disappearing from oceans, lakes, rivers, and coastal waters at an alarming rate, threatening aquatic life and weakening the natural processes that help regulate Earth’s climate. Scientists warn that this widespread deoxygenation is closely connected to other major planetary threats, including warming, pollution, biodiversity loss, and ocean acidification.

    TempératureOcéanBiodiversité
  33. The Cryosphere 20 juil. 2026, 13:41
    Late Holocene stabilization of Conway Ice Ridge

    Late Holocene stabilization of Conway Ice Ridge Andrew O. Hoffman, Paul T. Summers, Jenny Suckale, Knut Christianson, Ginny Catania, and Howard Conway The Cryosphere, 20, 3977–4003, https://doi.org/10.5194/tc-20-3977-2026, 2026 In Antarctica, fast-flowing ice streams drive most ice loss. Radar data from Conway Ice Ridge reveal that the van der Veen and Mercer Ice Streams were wider ~3000 years ago and narrowed progressively. Numerical model

    Cryosphère
  34. The Cryosphere 20 juil. 2026, 13:41
    Local-scale variability in snow chemistry drives distinct microbial communities in Alpine seasonal snowpack

    Local-scale variability in snow chemistry drives distinct microbial communities in Alpine seasonal snowpack Anastasiia Kosolapova, Romain Castro, Ferran Romero, Catherine Larose, and Ianina Altshuler The Cryosphere, 20, 3959–3975, https://doi.org/10.5194/tc-20-3959-2026, 2026 Seasonal snow acts as a dynamic medium, accumulating atmospheric particles and microorganisms, creating unique microbial habitats in alpine environments. At the local

    CryosphèreBiodiversité
  35. Phys.org — Earth 20 juil. 2026, 12:40
    Africa's wildfire season is actually getting shorter, scientists think they know why

    Africa is home to around 70% of the world's burned area—the total area of land scorched by wildfires each year—making it the planet's biggest wildfire hotspot. Yet despite this, satellite observations have revealed an unexpected trend over the past two decades: The amount of land burned across the continent has been steadily falling.

    Événements extrêmes
  36. Phys.org — Earth 20 juil. 2026, 12:00
    How to keep the air inside your home clean during wildfires

    The eerie glow of an orange sun through thick wildfire smoke might be unnerving, but the biggest risk from the haze is something much harder to see.

    Événements extrêmes
  37. Phys.org — Earth 20 juil. 2026, 11:30
    Greece braces for year's first heat wave

    Greece, which was spared the record heat that ravaged most of Europe in June, is finally bracing for its first heat wave of the year.

    Température
  38. Communications Earth & Environment 20 juil. 2026, 02:00
    Nitrate-intercalated layered double hydroxide-mediated reactive oxygen species regulation enhances nutrient cycling in sediment ecosystems
    Biodiversité
  39. Communications Earth & Environment 20 juil. 2026, 02:00
    Surface Water and Ocean Topography satellite data reveals flood depths and environmental flows in wetlands
    OcéanÉvénements extrêmes
  40. Communications Earth & Environment 20 juil. 2026, 02:00
    Naturalness catalyzes public support for carbon dioxide removal and low-carbon energy technologies
    Carbone & émissions
  41. Phys.org — Earth 19 juil. 2026, 10:39
    Wildfire haze hangs over eastern US—and World Cup final

    Heavy, acrid wildfire smoke blanketed much of the eastern United States on Saturday, marring preparations for the weekend's highly anticipated World Cup final to be held in an open stadium in New Jersey.

    Événements extrêmes
  42. ScienceDaily — Climate 18 juil. 2026, 15:15
    They were drilling off Oregon. What they found could shake the entire West Coast

    Scientists have found evidence that a major Cascadia earthquake could trigger a second quake on the San Andreas Fault. The discovery came from unusual sediment layers formed by underwater landslides recorded over thousands of years. These patterns suggest both fault systems may have ruptured close together in the past. The findings raise new concerns about a potential coast-wide earthquake sequence.

  43. ScienceDaily — Climate 18 juil. 2026, 15:00
    A shattered asteroid may have bombarded Earth 800 million years ago

    A catastrophic asteroid breakup may have triggered a huge wave of impacts across the inner solar system about 800 million years ago. The debris was launched from near a gravitational gateway controlled by Jupiter, sending fragments toward Earth, the Moon, and Mars. The bombardment may explain ancient lunar craters and could have contributed to major climate and biological changes on Earth.

  44. ScienceDaily — Climate 18 juil. 2026, 14:36
    Earth’s biggest volcanic event transformed an entire oceanic plate

    Seismic waves have revealed that the oceanic plate beneath the Ontong Java Plateau was dramatically transformed by the colossal volcanic activity that created it more than 100 million years ago. Researchers found a complex structure of horizontal layers cut through by vast swarms of vertical magma channels, along with unusually slow seismic waves suggesting that deep-rising magma chemically altered the plate itself.

    Océan
  45. Communications Earth & Environment 18 juil. 2026, 02:00
    Crystal dislocations and incorporation of Sc in hydrothermally modified beryl from LCT type pegmatites
  46. Communications Earth & Environment 18 juil. 2026, 02:00
    Crustose coralline algae buffer shallow reef environments from dissolution
    Océan
  47. Communications Earth & Environment 18 juil. 2026, 02:00
    Promises and pitfalls of climate adaptation tools across the Mediterranean
  48. Earth System Science Data 17 juil. 2026, 18:13
    PeatCover: Towards a peat mapping at 90 m using satellite remote sensing and a priori inventories

    PeatCover: Towards a peat mapping at 90 m using satellite remote sensing and a priori inventories Man Chen, Philippe Ciais, Gustaf Hugelius, and Filipe Aires Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-254,2026 Preprint under review for ESSD (discussion: open, 0 comments) Peatlands are vital carbon stores, yet mapping them consistently across borders is challenging due to varying data quality and definitions. We developed Pe

    Carbone & émissions
  49. Earth System Science Data 17 juil. 2026, 18:13
    Overview of ParallelClim-WestUS-Daily – high-resolution observed and counterfactual daily climate data for the western United States, 1951–2025

    Overview of ParallelClim-WestUS-Daily – high-resolution observed and counterfactual daily climate data for the western United States, 1951–2025 A. Park Williams, John T. Abatzoglou, Gavin D. Madakumbura, Haibo Liu, Stefan Rahimi, and Christopher Daly Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-391,2026 Preprint under review for ESSD (discussion: open, 0 comments) Here we introduce ParallelClim-WestUS-Daily, a new dataset of

  50. Earth System Science Data 17 juil. 2026, 18:13
    ChinaTCC30: An annual 30 m tree canopy cover dataset for China from the 1970s to 2024

    ChinaTCC30: An annual 30 m tree canopy cover dataset for China from the 1970s to 2024 Jinge Yu, Zhen Yu, Wangya Han, Fangmin Zhang, and Shirong Liu Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2026-546,2026 Preprint under review for ESSD (discussion: open, 0 comments) We present a new long-term tree canopy cover dataset for China, including maps for 1975, 1980, and every year from 1985 to 2024. Using satellite images and a cost-ef

  51. Earth System Science Data 17 juil. 2026, 18:13
    Conversion factors for Greenland shelf benthos: Weight-to-weight and body-size-to-weight relationships

    Conversion factors for Greenland shelf benthos: Weight-to-weight and body-size-to-weight relationships Johanna Behrisch and Nadescha Zwerschke Earth Syst. Sci. Data, 18, 5009–5026, https://doi.org/10.5194/essd-18-5009-2026, 2026 Climate change, human activity and biodiversity loss are rapidly altering Arctic marine ecosystems. We measured body size and weight of common seafloor animals in southeast Greenland to create reliable conversion fa

    OcéanCryosphèreBiodiversité
  52. Eos (AGU) 17 juil. 2026, 16:03
    Big Trouble from Little Wetlands

    New research suggests that small wetlands, previously unaccounted for in the global methane budget, are responsible for about 25% of global methane emissions.

    Carbone & émissions
  53. The Cryosphere 17 juil. 2026, 13:41
    Bayesian inversion of satellite altimetry for Arctic sea ice and snow thickness

    Bayesian inversion of satellite altimetry for Arctic sea ice and snow thickness Elie René-Bazin, Michel Tsamados, Sabrina Sofea Binti Aliff Raziuddin, Joel Perez Ferrer, Tudor Suciu, Carmen Nab, Chamkaur Ghag, Harry Heorton, Rosemary Willatt, Jack Landy, Matthew Fox, and Thomas Bodin The Cryosphere, 20, 3913–3932, https://doi.org/10.5194/tc-20-3913-2026, 2026 This paper introduces a new statistical approach to retrieve ice and snow depth ov

    Cryosphère
  54. The Cryosphere 17 juil. 2026, 13:41
    Long-term InSAR and streamflow recession analysis reveal accelerated permafrost degradation in the mining area of the Qilian Mountains

    Long-term InSAR and streamflow recession analysis reveal accelerated permafrost degradation in the mining area of the Qilian Mountains Tian Chang, Yonghong Yi, Masato Furuya, Huiru Jiang, Tao Che, Youhua Ran, Lin Liu, and Rongxing Li The Cryosphere, 20, 3933–3957, https://doi.org/10.5194/tc-20-3933-2026, 2026 We combined a long-term surface deformation dataset derived from multi-frequency Interferometric Synthetic Aperture Radar with stream

    Cryosphère
  55. Nature Climate Change 17 juil. 2026, 02:00
    Win–wins for wind and whales
  56. Nature Climate Change 17 juil. 2026, 02:00
    Tropical forest restoration can offset water flux losses from deforestation but not everywhere
    Biodiversité
  57. Nature Climate Change 17 juil. 2026, 02:00
    Balancing marine species conservation with cost-effective renewable energy development
    OcéanBiodiversité
  58. Nature Climate Change 17 juil. 2026, 02:00
    Intercity connectivity enhances urban mobility resilience to extreme rainfall
    Événements extrêmes
  59. Communications Earth & Environment 17 juil. 2026, 02:00
    The hydrological asymmetric signature of El Niño–Southern Oscillation on global water storage
  60. Eos (AGU) 16 juil. 2026, 21:00
    We’re Getting Better at Knowing When Climate Change is to Blame, National Academies Report Says

    Scientists have gotten much better at parsing how severe events are linked to climate change, a long-awaited report from the National Academies of Sciences, Engineering and Medicine has found. The report was developed by 14 experts (including climatologists, meteorologists, and atmospheric scientists) and updates a 2016 report on the same subject. That report found that climate change was partly responsible for worsening heat waves, cold events,

    Température
  61. Eos (AGU) 16 juil. 2026, 15:18
    The “Eternity Glaciers” Are Almost Gone

    The equatorial glaciers atop Puncak Jaya, Oceania’s tallest peak, have shrunk by about 95% since 2002, according to a new photogrammetry mapping effort.

    OcéanCryosphère
  62. ScienceDaily — Climate 16 juil. 2026, 14:37
    Earth has a natural thermostat and scientists finally know how it works

    Scientists have identified a hidden feedback loop that may explain how Earth has regulated its climate for tens of millions of years. As sea levels rose and fell, they changed how much phosphate reached the open ocean, affecting marine life and the amount of carbon buried beneath the seafloor. That burial removed carbon dioxide from the atmosphere, helping cool the planet.

    Carbone & émissionsOcéan
  63. Eos (AGU) 15 juil. 2026, 20:00
    These “Clumped” Molecules Could Offer Clues About Earth’s Climate

    Researchers investigated concentrations of clumped methane isotopes to learn more about how levels of the potent greenhouse gas have changed over the industrial era.

    Carbone & émissions

Observatoire de la planète — récolte RSS automatique depuis data/observatoire/feeds-planete.json (actualités + revues scientifiques), sans tri éditorial : les titres et extraits sont ceux des sources. Repères GIEC maintenus à la main dans data/observatoire/giec-reperes.json, chaque valeur sourcée. Méthode ouverte dans le dépôt.