Oceans

If greenhouse gas emissions are not curbed, temperature spikes could bring the first such mass extinction in 250 million years

Natural variations are currently the main cause, but climate change should continue to cause it to slow down

Think of the process as a kind of marine fecal transplant—except the restorative bacteria do not come from stool; they come from other corals.

Humans have shifted the weight of life in the sea

Truly global participation in the process will create more than just a Paris Agreement for plastics

Once rare marine heat waves have become routine, threatening coral reefs and other sea creatures

Harnessing the wind to blow back emissions is not without its own impacts, so researchers are developing technologies to coexist with whales and other ocean-dwelling species.

Last year broke the record from 2020 by about 14 zettajoules, or 20 times the world’s annual energy consumption

A ship sunk by a German U-boat in 1942 can today help track large pulses of mud from the Mississippi River

A major new report from the National Academies examines options to store carbon in the oceans

An analysis of roughly 135,000 watersheds reveals that large amounts of key pollutants come from human wastewater, not just agricultural runoff

Sediment and algal blooms are blocking sunlight, reducing kelp productivity