Reuters - DENVER (Reuters) -- Al Gore, who lost the 2000 election but has become a world leader on the environment, was embraced at the Democratic Party's convention on Thursday as a comeback hero -- with a warning against John McCain and climate change.

McClatchy Newspapers - WASHINGTON ? Sen. John McCain's choice of a running mate, Gov. Sarah Palin of Alaska, favors drilling for oil in the Arctic National Wildlife Refuge, questioned the science behind predictions of sea ice loss linked to global warming and opposed a state initiative that would have banned metal mines from discharging pollution into salmon streams.