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warning

septembre 2025

EU officials warn climate breakdown and wildlife loss ‘are ruining ecosystems that underpin the economy’ […] The European way of life is being jeopardised by environmental degradation, a report has found, with EU officials warning against weakening green rules. The continent has made “important progress” in cutting planet-heating pollution, according to the European Environment Agency, but the death of wildlife and breakdown of the climate are ruining ecosystems that underpin the economy.

juillet 2025

Forever chemicals have polluted the water supply of 60,000 people, threatening human health, wildlife and the wider ecosystem. But activists say this is just the tip of the Pfas iceberg

juin 2025

Fifteen years ago, smack in the middle of Barack Obama's first term, amid the rapid rise of social media and a slow recovery from the Great Recession, a professor at the University of Connecticut issued a stark warning: the United States was heading into a decade of growing political instability.
There’s frustration among researchers that falling pH levels in seas around the globe are not being taken seriously enough, and that until the buildup of CO2 is addressed, the consequences for marine life will be devastating
A new study uncovers Earth’s deep temperature history and shows just how tightly carbon dioxide has always controlled the climate

mars 2025

https://www.ucs.org/resources/1992-world-scientists-warning-humanity - Some 1,700 of the world's leading scientists, including the majority of Nobel laureates in the sciences, issued this appeal in November 1992. The World Scientists' Warning to Humanity was written and spearheaded by the late Henry Kendall, former chair of UCS's board of directors.
Il y a vingt-cinq ans, l'Union of Concerned Scientists et plus de 1700 scientifiques indépendants, dont la majorité des lauréats scientifiques du prix Nobel d’alors, ont scellé l'Avertissement des scientifiques du monde à l'humanité de 1992 (voir le texte en annexe S1). Ces scientifiques s’adressaient à l'humanité afin d’endiguer la destruction de l'environnement et avertissaient « Si nous voulons éviter une misère humaine à grande échelle, il est indispensable d’assurer un changement profond de notre gestion des ressources et de la vie sur Terre ».

décembre 2023

the starkest warning yet that human activity is pushing Earth into a climate crisis that could threaten the lives of up to 6 billion people this century, stating candidly: “We are afraid of the uncharted territory that we have now entered.” Writing in the journal Biosciences, the coalition of 12 researchers, spanning North America, Europe and Asia, state in unusually stark language: “As scientists, we are increasingly being asked to tell the public the truth about the crises we face in simple and direct terms. The truth is that we are shocked by the ferocity of the extreme weather events in 2023.”

novembre 2023

When Rishi Sunak granted 27 new North Sea licences this week, he wasn’t thinking about the survival of the living world, says Guardian columnist George Monbiot

août 2023

The UN Secretary-General’s Early Warnings for All Initiative (EW4All) is rapidly gaining ground. Action plans are being rolled out around the world to ensure that people know when dangerous weather is headed their way. Tajikistan has held a two-day national consultation, co-chaired by the Deputy Prime Minister and the UN Resident Coordinator in Tajikistan, and bringing together key stakeholders from state and international organizations, media and civil society. Ethiopia also held an inception workshop.
Antarctica’s sea ice levels are plummeting as extreme weather events happen faster than scientists predicted

juillet 2023

The Atlantic meridional overturning circulation (AMOC) is a major tipping element in the climate system and a future collapse would have severe impacts on the climate in the North Atlantic region. In recent years weakening in circulation has been reported, but assessments by the Intergovernmental Panel on Climate Change (IPCC), based on the Climate Model Intercomparison Project (CMIP) model simulations suggest that a full collapse is unlikely within the 21st century. Tipping to an undesired state in the climate is, however, a growing concern with increasing greenhouse gas concentrations. Predictions based on observations rely on detecting early-warning signals, primarily an increase in variance (loss of resilience) and increased autocorrelation (critical slowing down), which have recently been reported for the AMOC. Here we provide statistical significance and data-driven estimators for the time of tipping. We estimate a collapse of the AMOC to occur around mid-century under the current scenario of future emi
Letter: Scientists and academics including Prof Gesa Weyhenmeyer and Prof Will Steffen argue that we must discuss the threat of societal disruption in order to prepare for it

mars 2023

Humanity received a “final warning” Monday from the UN Intergovernmental Panel on Climate Change. The bottom line of the Synthesis Report of the IPCC’s Sixth Assessment Report is to “act now, or it’s too late,” the Guardian wrote. The scale of the emergency screams out from almost every page — climate change is already displacing and killing millions of people globally — but the report also provides what UN Secretary-General António Guterres called a roadmap for defusing the “climate time bomb.”
IPCC report says only swift and drastic action can avert irrevocable damage to world

juin 2022

From the Heart of the World - The Elder Brothers Warning is a documentary about the Kogi people who inhabit the Sierra Nevada de Santa Marta mountain in northern Colombia. Direct descendants of the Tayrona people they survived Spanish Conquistadors - a feat no other tribe can claim. Long thought extinct, they reappeared from their mountain home to warn the world about the harmful damage it was causing.

mars 2022

There's no time for complacency, according to Dr. Peter Carter, founder of the Climate Emergency Institute
February 28, 2022. Human-induced climate change is causing dangerous and widespread disruption in nature and affecting the lives of billions of people around the world, despite efforts to reduce the risks. People and ecosystems least able to cope are being hardest hit, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report, released today.
Russia’s military offensive against Ukraine is an act of aggression that will make already worrisome tensions between Nato and Moscow even more dangerous. The west’s new cold war with Russia has turned hot. Vladimir Putin bears primary responsibility for this latest development, but Nato’s arrogant, tone‐​deaf policy toward Russia over the past quarter‐​century deserves a large share as well. Analysts committed to a US foreign policy of realism and restraint have warned for more than a quarter‐​century that continuing to expand the most powerful military alliance in history toward another major power would not end well. The war in Ukraine provides definitive confirmation that it did not.

octobre 2021

With global warming intensifying the water cycle, floods and droughts are increasing, and many countries are unprepared.