WATCH: This is what billions of tons of melting Arctic ice looks like
02:56
Share this -
copied
Over the month of July, so much ice melted off Greenland's ice sheet that the resulting water raised worldwide sea levels by half a millimeter. Chris Hayes explains how this is part of a disturbing feedback loop.Aug. 3, 2019
UP NEXT
Luis A. Miranda on the power of Latino voters and his new book 'Relentless'
08:56
Trump's 'nuts and sluts defense' against Stormy Daniels backfires
08:11
Biden trolls Trump over Foxconn 'con job:' He 'didn't build a damn thing'
07:11
Watch All In With Chris Hayes Highlights: May 8
15:02
Marjorie Taylor Greene fails to oust Speaker Mike Johnson; Trump weighs in too late
06:42
Let's be clear: What Trump's Judge Cannon is doing is a ‘scandal,' says Hayes