McClatchy Newspapers: 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. The Alaska governor has said that she’s tried to persuade McCain to agree with her on drilling in the wildlife refuge. She also has said that she was happy …