Gadget Lab: Weekly Tech News

If you haven’t heard of it before, you’re about to become intimately familiar with the Atlantic Meridional Overturning Circulation. This system of currents—which brings water up the Atlantic from the southern tip of South America, through the tropics, and all the way to the coast of Iceland before looping back down south—plays a key role in keeping our planet’s climate stable. It keeps northern European winters relatively mild, it provides nutrients to ocean life, and it brings much-needed rain to agricultural systems in equatorial zones.Researchers who study the AMOC say this system is showing signs of instability, and it could shut down entirely—and soon. If the current slows down or stops, it would potentially kick off an ecological disaster of epic proportions. Deep cold spells, crushed food systems, entire regions in drought. This week, we bring WIRED features editor Sandra Upson onto the show to talk about the AMOC, the research that’s being done on it, and what life would be like on Earth if the curren