Jean-Baptiste Fressoz

L'année 2026 est en passe d'être l'année la plus chaude (probabilité d'environ 35 %) ou la deuxième plus chaude (probabilité d'environ 63 %) jamais enregistrée, tandis que 2027 a de très fortes chances (probabilité de 92 %) d'être l'année la plus chaude jamais enregistrée, en raison d'un phénomène « super El Niño » qui prend de l'ampleur. Actuellement, 2027 serait juste au-dessus des +1,7°C ! La quantité de malheurs et de souffrances qui vont accompagner ce niveau de réchauffement est très important. Courage à toutes et à tous pour les années à venir

The climate and nature crisis threatens all aspects of British life, from national security to the food supply. Despite the scale of the risks now facing the UK, there has been no comprehensive national emergency briefing delivered to the public by the Government.

There is reason to expect that global temperatures will continue to increase over the remainder of the year, as a strong El Niño event is expected

The new joint policy brief offers a deep dive into the ways in which the social and solidarity economy can advance the objectives of the Roadmap by supporting the eradication of poverty beyond growth.

China’s carbon dioxide (CO2) emissions fell by 1% in the final quarter of 2025, likely securing a decline of 0.3% for the full year as a whole.

Climate change could lead to half a million more deaths from malaria in Africa over the next 25 years, according to new research.

À l’occasion de la COP30, la conférence annuelle des Nations unies sur le changement climatique, qui a lieu au Brésil en novembre 2025, la rédaction de Brief.science vous propose un e-book exceptionnel pour comprendre le changement climatique en 20 infographies.

Les deux chefs d’Etat se sont rencontrés sur le tarmac d’une base militaire à Anchorage, en Alaska, ce vendredi 15 août. L’ambiance était cordiale mais ils n’avaient rien de concret à annoncer après trois heures de discussion.

The Global Justice Project is a collective research initiative developed by the World Inequality Lab. Combining comparative historical data series from the World Inequality Database with global input-output tables, environmental accounts, labour force surveys and other sources, the project explores what a just distribution of socio-economic and environmental resources could look like at the global level from 2025 to 2100 – both between and within countries – in a way that is compatible with planetary boundaries. The project partly builds on the analysis and proposals set out in Thomas Piketty’s Brief History of Equality, extending them into a broader and more comprehensive global framework. The Global Justice Project is now available to explore on a dedicated website, that includes an interactive tool to explore the distributional pathways and climate scenarios behind the report.

Children born in 2020 will face “unprecedented exposure” to extreme weather events even if warming is limited to 1.5C.