Daily Roundup: December 23, 2010

Under Control: The Obama administration will regulate emissions from fossil-fuel power plants and petroleum refineries, which together emit nearly 40% of U.S. greenhouse gases. Grist

Fat Chance: A Louisiana plant is converting animal fat into renewable diesel. Will the new fuel replace soy-based biodiesel? Not if Nascar has anything to do with it. National Geographic

Frozen Donkeys? Activists are protesting the use of live animals at an outdoor nativity scene in northern Poland, where a recent arctic chill killed two dozen people. Huffington Post

Like Wall Street But Fishier: After decades of overfishing and lawsuits, West Coast fisheries will be working under a new market-based system come January. Each fishery will have a quota, and each fisherman will own a percentage of that catch. NPR

Not Endangered? Upholding a 2008 Bush-administration decision, the Obama administration says polar bears are merely threatened and not in imminent danger of extinction. AFP 

--Natalya Stanko