U.S. sales rose more than 9 percent in January as consumers bought more trucks and SUVs. They may not know it, but some of those Ford interiors are made of stuff other than oil.
Plans for new nuclear power plants in the U.S. lose appeal as Congress doesn't act on carbon emissions rules and natural gas becomes plentiful and cheap.
Canada — home to two-thirds of the total polar bear population left on earth — is debating putting the species on an at-risk list. That would mean trying to place an economic value on the animal.