[matthewdgreen]

A while back I noticed a motivated group of people on HN pushing very strong claims that the science of nuclear winter had been discredited. I did some reading to see if I could find any science backing their claims, and didn't find much that comforted me. (Basically some reasonable scientists argued that early estimates of nuclear winter were overblown, but their more reasonable calculations still showed full-scale nuclear war would be catastrophic.)

When I see many different people parroting the same unusual scientific claim on Internet sites, I tend to think there's a single source with an agenda. I hope this isn't true, because it made me worry that some organized group was trying to promote the idea that "nuclear war isn't so bad," which is... yikes.