The Atlantic Meridional Overturning Circulation
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Mysterious ‘cold blob’ in the Atlantic suggests the AMOC is weakening
Over the past 150 years, Earth’s entire surface has been warming, except for one patch of the north Atlantic. Located south-east of Greenland, this area has cooled by as much as 1°C and is known as the “warming hole” or the “cold blob”. Scientists have been split over why this cold blob exists, but the latest evidence backs up the idea that it is caused by a weakening of the Atlantic Meridional Overturning Circulation (AMOC), the system of currents that transports warmth from the tropics to...
Cleaning up air pollution could weaken vital AMOC ocean current
Global warming already threatens to destabilise the Atlantic Meridional Overturning Circulation, and new research shows that regional clean-air policies could reduce its strength further
Climate network characterization of the AMOC edge state
arXiv:2606.08623v1 Announce Type: new Abstract: The Atlantic Meridional Overturning Circulation (AMOC) has been identified as a tipping element in the Earth system. Under the current climate change scenarios, it is urgent to develop robust methods for determining the probability of future AMOC transitions. Recent studies using an Earth System Model of Intermediate Complexity (EMIC) have revealed the importance of an AMOC edge state, located on the boundary of the attraction basin of the...
Tump administration to remove 900 deep sea monitoring instruments that would have studied the collapsing Atlantic current
Tump administration to remove 900 deep sea monitoring instruments that would have studied the collapsing Atlantic current The Ocean Observatories Initiative has been collecting data on physical, chemical, geological and biological conditions in the Atlantic and Pacific Oceans for the past decade The Trump administration is targeting one of the world's most trusted sources of climate and oceanic data — the Ocean Observatories Initiative (OOI). According to the New York Times, ships will be...
Cuts to US ocean programme will hinder monitoring of El Niño and AMOC
In the winter of 2013-2014, the strong winds of the jet stream shifted north, allowing a mass of warm water dubbed “the blob” to swell across more than 1500 kilometres of the north Pacific Ocean. Floating instruments moored to the seabed off Alaska, Washington and Oregon alerted scientists and the fishing industry to the arrival of this water, which was up to 4°C hotter than normal. They were part of the Ocean Observatories Initiative (OOI), five mooring arrays off the US west and east...
Mysterious 'cold blob' in the Atlantic is a sign of the Gulf Stream weakening — and that's bad news for the US East Coast
Mysterious 'cold blob' in the Atlantic is a sign of the Gulf Stream weakening — and that's bad news for the US East Coast The Atlantic's enigmatic "cold blob" has once again been linked to a weakening of key ocean currents and a devastating climate tipping point. A mysterious "cold blob" in the Atlantic Ocean is a sign that key ocean currents are weakening, a new study has found, with potentially devastating long-term impacts on our climate and weather. The cold blob, or North Atlantic...
Europe pours money into ocean research as Trump guts science funding
PARIS — The European Union wants to plug a gaping hole in ocean research left behind by the administration of U.S. President Donald Trump. The trouble is, it has a lot less cash to splash. Last week, the European Commission launched the “OceanEye” program, which aims to make the EU “a global leader in ocean intelligence” by investing in critical ocean observation technologies and data collection on how oceans evolve. It came two weeks after the...
U.S. to Dismantle System Tracking Atlantic Currents That Are at Risk of Collapse
The Trump administration is moving to dismantle an ocean observation system consisting of more than 900 instruments in the Pacific and Atlantic oceans. Data supplied by the system has been used to study key Atlantic currents that increasingly appear in danger of collapse as the climate warms. Just days after President Trump fired the independent board overseeing the National Science Foundation, the NSF announced the “removal of all in-water infrastructure” belonging to the Ocean...