He said "all the planets in the solar system." I'd still like to see a citation. Mars warmed for other reasons. http://news.nationalgeographic.com/news/2007/

He said "all the planets in the solar system." I'd still like to see a citation. Mars warmed for other reasons. http://news.nationalgeographic.com/news/2007/04/070404-mars-warming.html http://news.nationalgeographic.com/news/2007/04/070404-mars-...