Critics of carbon regulations using mine spill to skewer EPA

Authorities say rivers tainted by last week's massive spill from an abandoned Colorado gold mine are starting to recover, but for the Environmental Protection Agency the political fallout from the disaster could linger.

Australia PM Abbott defends emissions target

Prime Minister Tony Abbott on Saturday defended Australia's carbon pollution reduction target as in line with those of other countries after the nation's climate change authority criticised the goal as "disappointing".