Jeff Tollefson in Nature:
Sometime in the next several months, a team of US scientists plans to pour a solution of antacid into the waves off the coast of Massachusetts. Using boats, buoys and autonomous gliders, the scientists will track changes in water chemistry that should allow this tiny patch of the Atlantic Ocean to absorb more carbon dioxide from the sky than it normally would.
The US$10-million experiment, dubbed LOC-NESS, aims to test one prominent strategy to reverse global warming by removing CO2 from the atmosphere. Doing so will be neither cheap nor easy. But with the world looking likely to blow past the temperature targets laid out in the 2015 Paris climate agreement, a growing number of scientists and policy specialists say that carbon removal will be necessary later this century if humanity is to achieve its long-term climate goals.
More here.
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