The climate crisis no longer looms in the future, but has arrived in the form of deadly heat waves, enormous wildfires, floods, hurricanes, and droughts. While the fight to slow the effects of global warming continues, it’s clear that we also need to protect ourselves and the most vulnerable around us from the devastating effects of global warming. Award-winning science writer and broadcaster David Pogue discusses concrete steps to safeguard ourselves and our loved ones in an increasingly precarious world.