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https://www.sciencealert.com/global-warming-speeds-up-currents-in-the-deepest-parts-of-the-ocean
3 APRIL 2022
We know that global warmingaffects ocean currentsin a variety of ways, but questions remain about exactly how this relationship works. A new study attempts to answer some of those questions.
Scientists pored over data stretching back 66 million years over 293 sites, looking at gaps in sedimentary layers, known as hiatuses, to figure out the varying strength of ocean currents across the millennia and how this relates to temperature changes.
Doing so provided a wealth of extra data beyond the 30 years or so of satellite imagery that researchers traditionally used to look at how ocean current activity changes as the temperature of the globe keeps on rising.
“The satellite data typically used to inform ocean models only cover a few decades, leading to a poor understanding of longer-term ocean variability,”says sedimentologist Adriana Dutkiewiczfrom the University…
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