Earth, our ocean-dominated world, stores away a vast majority of the planet’s accumulating heat in the seas. In fact, over 90 percent of the planet’s rising warmth — specifically trapped by human-created greenhouse gas emissions — is absorbed by the deep, salty waters. For the last half-century, scientists have worked to put a more precise number on just how much heat the oceans take up each year, and for good reason: More heat absorption might provide evidence that our pale blue dot is increasingly sensitive to the heat-trapping carbon amassing in our atmosphere — which is likely at its highest levels in 15 million years. And now, new research published in the scientific journal Nature supports the highest — or most problematic — of those ocean heat estimates. “We found it’s really in the top range of the estimates,” Laure Resplandy, a Princeton University geoscientist who led the novel study, said in an interview. The Earth is warming, and most heat ends up in the ocean.Image: NasaResplandy’s research is a unique approach to gauging the accumulating warmth in the oceans. (There’s a somewhat spotty record documenting that accumulation before 2007.) Rather than measuring ocean waters directly with thermometers
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