A long, important, dense, and profound article. It begins with a 2068 fictional climate dystopia scene, reviews all the pertinent science, segues into the politics of climate change, and ends with a rallying cry for action. Well worth your time ... pass it on to someone else ... a key takeaway from Black Diamond's, Pete Metcalf is that recreational impacts are the least of our worries. (I knew the guy when he was a brash 18 year old, just off the Salathe Wall, whipping off pull-ups at the Climbers Ranch in Jackson.)