Our grandchildren are probably not going to die of climate catastrophe. However, that “probably” is sufficiently weak to justify a huge urgent response. An ast

Our grandchildren are probably not going to die of climate catastrophe. However, that “probably” is sufficiently weak to justify a huge urgent response. An asteroid with a 3% chance of wiping out hundreds of millions of people in 60 years would motivate us to deflect it. The long tail of climate outcomes is a worse threat than that hypothetical, and we’re doing precious little to prevent it.