Flux continu

The Antarctic Circumpolar Current (ACC) is the world's strongest ocean current and plays a disproportionate role in the climate system due to its role as a conduit for major ocean basins. This current system is linked to the ocean's vertical overturning circulation, and is thus pivotal to the uptake of heat and CO2 in the ocean. The strength of the ACC has varied substantially across warm and cold climates in Earth's past, but the exact dynamical drivers of this change remain elusive. This is in part because ocean models have historically been unable to adequately resolve the small-scale processes that control current strength. Here, we assess a global ocean model simulation which resolves such processes to diagnose the impact of changing thermal, haline and wind conditions on the strength of the ACC. Our results show that, by 2050, the strength of the ACC declines by ∼20% for a high-emissions scenario. This decline is driven by meltwater from ice shelves around Antarctica, which is exported to lower latit

Depuis quelques jours, plusieurs médias et politiques s’émeuvent d’une prétendue «interdiction» du comté souhaitée par «les écologistes». Derrière la polémique, des associations et scientifiques s’inquiètent des dégâts environnementaux dont est en partie responsable la production de ce fromage, malgré les efforts de la filière pour y remédier.

The ocean ecosystem is a vital component of the global carbon cycle, storing enough carbon to keep atmospheric CO2 considerably lower than it would otherwise be. However, this conception is based on simple models, neglecting the coupled land-ocean feedback. Using an interactive Earth system model, we show that the role ocean biology plays in controlling atmospheric CO2 is more complex than previously thought. Atmospheric CO2 in a new equilibrium state after the biological pump is shut down increases by more than 50% (163 ppm), lower than expected as approximately half the carbon lost from the ocean is adsorbed by the land. The abiotic ocean is less capable of taking up anthropogenic carbon due to the warmer climate, an absent biological surface pCO2 deficit and a higher Revelle factor. Prioritizing research on and preserving marine ecosystem functioning would be crucial to mitigate climate change and the risks associated with it.

The nation’s top banks are quietly advising their clients on how to build a financial life raft — or perhaps life yacht — from the wreckage of runaway climate change. Make no mistake: The forecasts coming from Wall Street’s leading financial institutions are bleak. But they also point their clients to potential profit-making opportunities from the havoc spreading across the planet, writes Corbin Hiar.

No one knows when the next alert or request to save a chunk of US government-held climate data will come in. Such data, long available online, keeps getting taken down by US President Donald Trump's administration. For the last six months or so, Cathy Richards has been entrenched in the response. She works for one of several organisations bent on downloading and archiving public data before it disappears.

Bayer, the corporation behind Roundup herbicide, has paid out nearly $11 billion in lawsuits. Trump’s EPA might move to block the suits.

While NGOs and Members of the European Parliament are calling for a ban on so-called "forever chemicals" in pesticides, only a few kilometres from Brussels, in Flanders, contamination is in full swing, even affecting organic farmers. PFAS (per- and polyfluoroalkyl substances) are chemicals used mainly for their water-repellent properties. Recent studies suggest that pesticide products may contain PFAS and that some active ingredients may meet the definition of a PFAS. This group of chemicals is a known threat to human health. Once in the environment, they are extremely persistent, earning them the nickname "forever chemicals".

Countries must move rapidly to slash CO2 emissions from homes, offices, shops and other buildings—a sector that accounts for a third of global greenhouse gas pollution, the United Nations said Monday. Carbon dioxide emissions from the building sector rose around 5% in the last decade when they should have fallen 28%, according to a new report by the United Nations Environment Program (UNEP).

Published 1972 – The message of this book still holds today: The earth’s interlocking resources – the global system of nature in which we all live – probably cannot support present rates of economic and population growth much beyond the year 2100, if that long, even with advanced technology. In the summer of 1970, an international team of researchers at the Massachusetts Institute of Technology (MIT) began a study of the implications of continued worldwide growth. They examined the five basic factors that determine and, in their interactions, ultimately limit growth on this planet-population increase, agricultural production, nonrenewable resource depletion, industrial output, and pollution generation. The MIT team fed data on these five factors into a global computer model and then tested the behaviour of the model under several sets of assumptions to determine alternative patterns for humankind’s future. The Limits to Growth is the nontechnical report of their findings. The book contains a message of hope a

As of February 22, over twenty Stand Up for Science protests are scheduled for March 7 throughout the United States. The protests are being organized by fellow scientists who are concerned about the Trump administration’s feelings and actions towards science (see Robles-Gil, 2025 in Science), includ