All articles tagged with #north atlantic
A Nature Communications study applies clumped-isotope geochemistry to exceptionally well-preserved fossil coccoliths to reconstruct 16 million years of North Atlantic temperatures, finding temperatures about 9°C cooler than previous alkenone-based estimates and closer to climate model simulations, challenging the view of extreme Miocene warmth and highlighting the need to re-evaluate climate proxies.
Britain and Norway led a joint patrol to defend critical undersea cables in the North Atlantic, deterring Russian submarines after monitoring a Russian attack sub and two spy subs for over a month; a fleet of at least 13 warships, with planes and hundreds of personnel, tracked the activity before the vessels departed. The operation underscores Western efforts to safeguard infrastructure amid tensions over Ukraine and sanctions evasion, and Norway's defence tie with the UK is expanding, including the purchase of British-made frigates.
Britain and Norway said they are prepared to seize ships suspected of facilitating Russia’s sanctioned oil shipments in the North Atlantic, marking a more aggressive step in enforcing sanctions after previously monitoring and boarding vessels.
France’s carrier strike group led by the nuclear-powered Charles de Gaulle has begun a North Atlantic deployment for mission LA FAYETTE 26, after departing Toulon on January 27 for the Orion 26 exercise, and will participate in NATO drills Steadfast Dart, Baltic Sentry, Neptune Strike, and Cold Response, including a historic port visit to Malmö, Sweden, as France strengthens maritime interoperability amid rising Russian activity and a shifting Arctic focus.
France sends its sole nuclear-powered aircraft carrier, the Charles de Gaulle, on its first North Atlantic deployment in over a decade as part of ORION 2026, signaling an expanded European deterrence posture amid Arctic tensions and Greenland geopolitics.
Two Russian sailors aboard the oil tanker Marinera, seized by the United States in the North Atlantic over sanctions concerns, have been released and are returning home. The vessel, previously Bella 1, was linked to a sanctions‑evading “shadow fleet,” but the fate of the rest of the crew remains unclear and U.S. prosecutors could pursue charges against others.
A recent study using clam shell growth rings confirms that climate change is disrupting the North Atlantic subpolar gyre, a key ocean current system, which could lead to significant regional and global climate impacts, including more extreme weather, sea level rise, and shifts in ocean heat transport, signaling potential irreversible tipping points in Earth's climate systems.
Contender, a 4.19-meter male great white shark, is the largest tagged male in the North Atlantic, signaling potential recovery of the region's shark population. He has been tracked along the US East Coast, contributing valuable data for conservation efforts.
A large blob of hot rock beneath the Appalachian Mountains, linked to ancient rifting between Greenland and Canada 80 million years ago, challenges previous theories about continental breakup and may explain the mountain range's uplift, with ongoing research aiming to confirm its origins and implications for Earth's geological processes.
A study estimates that approximately 27 million tons of nanoplastics, tiny plastic particles smaller than 1 micrometer, are floating in the North Atlantic Ocean, highlighting a significant and previously unquantified component of plastic pollution with potential ecological and health impacts.
A recent study shows that changes in water density in the subpolar North Atlantic quickly influence the strength of the Atlantic Meridional Overturning Circulation (AMOC), a key component of Earth's climate system, with implications for climate prediction and monitoring strategies.
A new study confirms that the Atlantic Meridional Overturning Circulation (AMOC), one of the world's most important ocean currents, has slowed substantially since the mid-90s. This weakening could have significant impacts on regional climates, potentially leading to colder winters in Europe and faster heating in the tropics. The study, which used extensive databases to measure the strength of AMOC, found a 20 percent reduction in the warm water transported by the Gulf Stream. While the study does not confirm an impending collapse of AMOC, it raises concerns about the potential for significant climate change and impacts on deep-water ecosystems.
The North Atlantic ocean is currently experiencing record-breaking warmth, with sea surface temperatures running about 2 degrees Fahrenheit hotter than the average over the last three decades. This anomaly is a signal of the planet's overall warming and has significant implications for marine ecosystems, including altered plankton communities, smaller fish, and potential impacts on hurricane season. The warming is attributed to various factors, including human activities and natural phenomena. While preparations can be made, the long-term solution lies in reducing carbon emissions to mitigate the ongoing damage.
Genomic research on blue whale carcasses revealed surprising findings about the North Atlantic population, showing less inbreeding and more genetic variation than expected despite a history of industrial whaling. The study, published in Conservation Genetics, suggests that the long reproductive cycle of blue whales may have prevented a genetic bottleneck. With fewer than 3,500 adult blue whales remaining in the North Atlantic, the findings provide hope for the conservation of this endangered species.
The final moments of an adult orca, known as Hunchy, have been captured in what is believed to be the first footage of its kind. Whale-watchers observed two younger orcas holding Hunchy at the surface to help him breathe, indicating that he was in trouble. The footage shows Hunchy floating motionless before sinking, while the younger orcas attempted to "activate" him. This could be the first time the death of an adult orca has been filmed in the North Atlantic, shedding light on how orcas behave when a member of their group is dying.