Podcast: Play in new window | Download According to a paper appearing in the March Proceedings of the Royal Society, “Now, for the first time, a global collapse [of civilization] appears likely.” The paper makes, in a scholarly, peer-reviewed manner, many of the same points about the existential threats that I made in my book [...]

![It has become a fad to argue about the effect of industrial smokestacks on changing climate. But that is far from all they do, as the USGS has just reminded us. (Photo by Eric Schmuttenmaer [akeg] /Flickr)](http://www.dailyimpact.net/wp-content/uploads/2012/02/air-pollution.jpg)







