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Scientists say ‘shocking’ discovery shows rapid cuts in carbon emissions are needed to avoid catastrophic fallout

Several, more recent global warming projections in the coupled model intercomparison project 6 contain extensions beyond year 2100–2300/2500. The Atlantic meridional overturning circulation (AMOC) in these projections shows transitions to extremely weak overturning below the surface mixed layer (<6 Sv; 1 Sv = 106 m3 s−1) in all models forced by a high-emission (SSP585) scenario and sometimes also forced by an intermediate- (SSP245) and low-emission (SSP126) scenario. These extremely weak overturning states are characterised by a shallow maximum overturning at depths less than 200 m and a shutdown of the circulation associated with North Atlantic deep water formation. Northward Atlantic heat transport at 26°N decreases to 20%–40% of the current observed value. Heat release to the atmosphere north of 45°N weakens to less than 20% of its present-day value and in some models completely vanishes, leading to strong cooling in the subpolar North Atlantic and Northwest Europe. In all cases, these transitions to a

in January, a group of present and former Republican state officials gathered at a posh resort in Sea Island, Georgia, together with conservative leaders, for a two-day lesson in how to dismantle corporate America’s most ambitious response to climate change. At the Cloister, with its golf courses, tennis courts, and beaches, ESG was denounced as a sinister force undermining free markets and democracy.

Stefan Rahmstorf, Professor of Physics os the Ocean at the University of Potsdam since 2000, presents a colloquium on the risks associated with the destabilization of the Atlantic Meridional Overturning Circulation (AMOC) and its potential consequences for the global climate.

Le magazine The Atlantic vient de sortir un nouveau récit, qui raconte cette fois comment deux journalistes ont obtenu une interview de Donald Trump.- […] Il a notamment confirmé que son mandat actuel à la tête des États-Unis était différent du premier, et a expliqué - à sa manière - en quoi: "La première fois, j'avais deux choses à faire: diriger le pays et survivre, j'avais tous ces escrocs. La deuxième fois, je dirige le pays et le monde".

Sascha is a U.K.-based staff writer at Live Science. She holds a bachelor’s degree in biology from the University of Southampton in England and a master’s degree in science communication from Imperial College London. Her work has appeared in The Guardian and the health website Zoe. Besides writing, she enjoys playing tennis, bread-making and browsing second-hand shops for hidden gems.

JD Vance was supposed to be the inconsequential vice-president. But his starring role in Friday’s blowup between Donald Trump and Volodymyr Zelenskyy – where he played a cross between Trump’s bulldog and a tech bro Iago – may mark the moment that the postwar alliance between Europe and the US finally collapsed.

The Atlantic Meridional Overturning Circulation (AMOC), vital for northwards heat transport in the Atlantic Ocean, is projected to weaken owing to global warming1, with significant global climate impacts2. However, the extent of AMOC weakening is uncertain with wide variation a …

EDF a passé une dépréciation pour 900 millions d'euros sur le projet éolien en mer Atlantic Shores, aux États-Unis, auquel participait le groupe français au sein d'une coentreprise avec Shell, a-t-il indiqué vendredi, après l'annonce d'un gel des permis d'exploitation par Donald Trump.

That’s now how separation of powers works under the U.S. Constitution.

The problem of waste that really needs fixing is not the public employees but the private contractors—and Elon Musk is one of them.

Global warming is moving faster than the best models can keep a handle on.

Several high-profile research papers have brought renewed attention to the potential collapse of a crucial system of ocean currents known as the Atlantic Meridional Overturning Circulation, or AMOC, as we discussed in part one of this two-part post. Huge uncertainties in both the timing and details of potential impacts of such a collapse remain.

On why collapse could be much closer than predicted: what happens when the Atlantic Ocean’s heart stops beating?

The Atlantic Meridional Overturning Circulation is the main driver of northward heat transport in the Atlantic Ocean today, setting global climate patterns. Whether global warming has affected the strength of this overturning circulation over the past century is still debated: observational studies suggest that there has been persistent weakening since the mid-twentieth century, whereas climate models systematically simulate a stable circulation. Here, using Earth system and eddy-permitting coupled ocean–sea-ice models, we show that a freshening of the subarctic Atlantic Ocean and weakening of the overturning circulation increase the temperature and salinity of the South Atlantic on a decadal timescale through the propagation of Kelvin and Rossby waves. We also show that accounting for upper-end meltwater input in historical simulations significantly improves the data–model agreement on past changes in the Atlantic Meridional Overturning Circulation, yielding a slowdown of 0.46 sverdrups per decade since 1950

The idea that the AMOC is headed to collapse is very controversial, but it is clearly weakening. If the circulation did collapse, the consequences on both sides of the Atlantic Ocean would be immense—including large changes in temperature and a spike in weather-related disasters.

The Atlantic Ocean's most vital ocean current is showing troubling signs of reaching a disastrous tipping point. Oceanographer Stefan Rahmstorf tells Live Science what the impacts could be.

The network of Atlantic ocean currents keeping the Earth's climate stable are far closer to collapse than first estimated, scientists warn.

AMOC collapse would bring severe global climate repercussions, with Europe bearing the brunt of the consequences.

Oceanographer Stefan Rahmstorf explains why Amoc breakdown could be catastrophic for both humans and marine life