Stripping seawater of carbon dioxide via electrochemical processes — thereby prompting oceans to draw down more greenhouse gas from the atmosphere — is a geoengineering approach under consideration ...

The global ocean “conveyor belt” circulation, shown in part here as red and blue lines, circulates cooler seawater below the surface and warmer seawater at the surface throughout the world’s oceans.

The Earth’s climate has fluctuated between cold and warm periods for millions of years. During the so-called “lukewarm interglacials” – warm phases between 800,000 and 430,000 years ago – atmospheric ...