
Not only do the world's oceans absorb around a quarter of the carbon dioxide that humans produce, they similarly absorb roughly 90% of the planet's excess heat. As a result, they play a critical role in limiting the degree to which climate change causes extreme weather and other problems. Yet the new data suggests that the world's oceans are straining under this burden. The research reinforces a recent study in the journal Nature Climate Change, which identified human-caused climate change as the driver behind two important increases in the sea surface temperature's seasonal cycle amplitude, or how life on Earth responds to environmental variations. On both occasions, the science demonstrates that humans are overtaxing our oceans' ability to offset climate change.
"The fact that all this heat is going into the ocean, and in fact, it's warming in some respects even more rapidly than we thought it would, is a cause for great concern," Professor Mike Meredith from the British Antarctic Survey told the BBC.