In a commentary last week, Sarah Palin dismissed "so-called climate change experts" and claimed that "there was no real consensus" about man-made global warming. But Washington Post columnist Eugene Robinson noted that when Palin was governor of Alaska, she issued an administrative order in 2007 aimed at developing a strategy "to reduce greenhouse-gas emissions from Alaska sources." Palin also wanted to consider "the opportunities for Alaska to participate in carbon-trading markets," a policy she now derides as "cap-and-tax." And the order described climate change as "a social, cultural and economic issue important to all Alaskans."Meanwhile, Palin and California Gov. Arnold Schwarzenegger have been exchanging jabs about climate change.