Physicist Christopher Keating believes so strongly that global warming is a scientific fact, he's willing to pay $10,000 to anyone who proves him wrong.
The long-time professor recently released a book, in which he writes: "Global warming deniers are using the same tactics as the tobacco advocates. In fact, some of the people involved today were involved in the tobacco campaign."
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This week, he announced on his blog his "$10,000 Global Warming Skeptic Challenge." You can read his challenge, and the contest guidelines here. The video above has more details from weather.com's Matt Sampson.
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Saunders Island and Wolstenholme Fjord are shown above during an Operation IceBridge survey flight in April 2013. Sea ice coverage in the fjord ranges from thicker, white ice seen in the background, to thinner ice and leads showing open ocean water in the foreground. (Photo by NASA/Michael Studinger)