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Early warning indicator hidden within the Gulf Stream could signal the collapse of key Atlantic currents, study findsShifts in the Gulf Stream could help researchers predict the human-driven failure of a huge system of ocean currents known as the Atlantic Meridional Overturning Circulation.
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3 rivers merge into striking half-and-half waterway in GuyanaEarth from space A 2023 satellite photo highlights the point where a trio of rivers converges in Guyana. One of the waterways has been significantly altered by mining waste, creating a striking color contrast.
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China banned all fishing to save the Yangtze River. This 'nuclear' option appears to be working.Decades of overfishing and habitat degradation led to huge declines in freshwater biodiversity in China's longest river, but there are signs of recovery after a fishing ban was implemented in 2021.
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Enormous freshwater reservoir discovered off the East Coast may be 20,000 years old and big enough to supply NYC for 800 yearsAn expedition off the coast of Massachusetts has confirmed the existence of a freshwater reservoir beneath the seafloor. Now, scientists are starting to understand when and how it formed.
27 Commentsrivers-oceans -
Giant underwater plumes triggered by 7-story waves at Nazaré captured off Portuguese coastEarth from space A 2020 satellite photo shows the immense power of 7-story waves crashing along the Portuguese coast. Later the same day, a surfer rode a 101-foot-tall wave at Nazaré, setting a new world record.
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Last year, the oceans absorbed a record-breaking amount of heat — equivalent to 12 Hiroshima bombs exploding every secondIn 2025, the ocean absorbed an extra 23 zettajoules of heat energy in 2025, breaking the ocean heat content record for the ninth consecutive year.
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18 of Earth's biggest river deltas — including the Nile and Amazon — are sinking faster than global sea levels are risingWorldwide, millions of people live in river deltas that are sinking faster than sea levels are rising, research suggests. This exacerbates the risk of catastrophic coastal flooding and land loss.
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What's the oldest river in the world?The oldest river predates the dinosaurs. But how do we know this?
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Submerged sandbanks shine like underwater auroras in astronaut's view of the BahamasEarth from space A 2016 astronaut photo of the Bahamas shows a series of luminous, rippling sandbanks partly carved out by a coral reef. The image also reveals subtle differences in the ocean's surface caused by a steep, hidden ocean drop-off.
Earth from space
