Anchorage Daily News: The ABC anchor has plenty of Alaska voters for company. Since entering the governor’s race two years ago, Palin has shimmied back and forth on the key question of whether warming trends are natural or a byproduct of human activity. What Palin ended up telling Gibson was this: “I’m attributing some of man’s activities to potentially causing some of the changes in the climate right now.” That sounds like a change from past statements, her interviewer said. She was sounding more …