Four rehabilitated juvenile green sea turtles were released into the Atlantic Ocean following months of expert care.

For several years, climate scientists have shown that the Atlantic Meridional Overturning Circulation (AMOC) could come to a halt if the world warms too much. New research from Utrecht University shows that this picture is incomplete: The pace of warming also determines whether the AMOC stays stable.

Cristobal became the third named storm of 2026.

Tropical Storm Cristobal has formed in the Atlantic Ocean, the National Hurricane Center said on Wednesday afternoon. And there are two other tropical disturbances in the Atlantic that could also end up with names before the week is through. Cristobal is the third named storm of 2026 in the Atlantic, and the first that has not formed in the Gulf.

Atlantic hurricane season is off to a quiet start and it’s probably time to start pointing fingers at El Niño.

Ancient seafloor sediments have revealed a surprising twist in how the Atlantic’s massive circulation system works. During a cold period about 3.4 million years ago, the flow of warm, salty water from the Indian Ocean into the Atlantic nearly shut down—but the AMOC did not weaken as expected.

Agulhas Leakage (visualized by white dots circumventing Southern Africa) entering the Atlantic Ocean. Credit: NASA’s Goddard Space Flight Center. Scientists thought they knew wh

For decades, scientists have asserted that the leakage of warm, salty Indian Ocean water south of South Africa into the Atlantic is a major contributor to the Atlantic Meridional Overturning Circulation (AMOC),

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A system of ocean currents could collapse anytime from 2025 onwards as climate change worsens, scientists have found.

Atlantic Niña is a relatively rare cooling of sea-surface temperatures in the Atlantic Ocean.

Tropical Storm Cristobal formed in the Atlantic Ocean on Wednesday morning, according to the National Hurricane Center.