For those who are curious: Here's Sagan's original prediction.[1] I'd also recommend reading the Gulf War section of wikipedia's article on nuclear winter.[2]

For those who are curious: Here's Sagan's original prediction.[1] I'd also recommend reading the Gulf War section of wikipedia's article on nuclear winter.[2] Sagan later admitted he was wrong, but only because smoke from the oil fires didn't reach the stratosphere. 1. http://articles.baltimoresun.com/1991-01-23/news/1991023131_1_kuwait-saddam-hussein-sagan http://articles.baltimoresun.com/1991-01-23/news/1991023131_... 2. https://en.wikipedia.org/wiki/Nuclear_winter#Kuwait_wells_in_the_first_Gulf_War https://en.wikipedia.org/wiki/Nuclear_winter#Kuwait_wells_in...