But the woman who could soon be a 72-year-old's heartbeat away from the United States presidency has an environmental policy so toxic it would make the incumbent, George Bush, blush.
Mr McCain has stressed he is concerned about global warming and has come out against drilling in the Arctic reserve. But, in recent weeks, he has wobbled on the issue. And environmentalists are describing Mrs Palin, who denies climate change is man-made, as "either grossly misinformed or intentionally misleading".
She wants to start drilling. She wants to block US moves to list the polar bear as an endangered species. And she has allowed big game hunters to shoot Alaska's bears and wolves from low-flying planes.
"Even the Bush administration can't deny the reality of global warming," Ms Siegel said. "The governor is aligning herself and the state of Alaska with the most discredited, fringe, extreme viewpoints by denying this."
Governor Palin would also like to bring open-cast coal mining to Alaska's Brooks Range Mountains, an act of environmental vandalism in the eyes of many.
The Palin administration has allowed Chevron to triple the amount of toxic waste it pours into the waters of Cook Inlet. This, even though the number of beluga whales in the bay has collapsed from 1,300 to 350 – the point of extinction – because of pollution and increased ship traffic.
Last year, Mrs Palin proposed offering a bounty of $150 per wolf, as long as the hunter provided the wolf's foreleg as proof of the kill. The measure did not pass. She even spent $400,000 on a state-funded campaign to block attempts to end the hunt.
Its not just wildlife conservationists who object. Many ordinary Alaskans also condemn the practice as barbaric.