This news should shock the world, but it hasn’t even appeared in most media. In the US, we actually have a significant group of people who are claiming that CO2 isn’t a greenhouse gas. This is wilful ignorance and frank insanity. A large minority simply ignore the reality or consider it a political issue. Nature, however, doesn’t play politics. Nature is numbers and nothing can change that. Right now, we are on the brink of a precipice. The only thing that can save us is concerted international action, which is unlikely to happen. In fact, the whole climate that our civilization has counted on for its entire history could fall completely apart more or less at any time.