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The federal ban on depictions of animal cruelty violates the right to free speech.
A new report finds that medical innovation boosts life expectancy, but doesn't cost more
The case for new oil drilling in Alaska and off America's coasts
Activists want America to reduce emissions to 1960s levels. Is that even possible?
Mama Grizzly becomes the first real politician of the Internet era.
Darwinian literary critics on how to tell the "bad guys" from the "good guys"
Why policy nihilism may be the only rational response to climate change
Geo-engineering is most cost-effective; carbon taxes the least.
Obama's getting ready for the U.N. global warming conference. So is Bjorn Lomborg.