What's uncertain is how apocalyptically bad it's going to be on a scale of "society collapses" to "everyone dies", plus when that's going to happen on a time sc

What's uncertain is how apocalyptically bad it's going to be on a scale of "society collapses" to "everyone dies", plus when that's going to happen on a time scale of "ten years" to "two hundred years". Every year they adjust their estimates things get worse.