Gore can't (and won't) back up his global warming claims--ducks debates

Chicago-based libertarian think-tank, the Heartland Institute, states:

What [Joseph] Bast wants is for Gore to debate one of three authorities who dispute the former vice president's assertion that global warming is a crisis that requires an immediate, hugely expensive response potentially damaging to the U.S. and world economies.

However, they are not the only ones Gore refuses to face:

The Heartland case is not the first time Gore has ducked a forum. Earlier this year he canceled an interview with Denmark's largest newspaper when he learned it would include questions from Bjorn Lomborg, respected author of The Skeptical Environmentalist. "Gore's sermon is not one that will stand scrutiny," says Christopher C. Horner, another one of Heartland's debate candidates, a senior fellow at the Competitive Enterprise Institute and author of The Politically Incorrect Guide to Global Warming and Environmentalism.

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