Greentech Media

MITT ROMNEY: Romney has said that while climate change is occurring, he isn't sure humans are the cause. Instead, his energy policy is framed around what will make the United States less dependent on foreign oil.

In that vein, Romney supports coal-to-liquid and coal-gasification technologies, alongside subsidies and research money for ethanol, biofuels, nuclear energy and oil drilling off the coast of the United States and in Alaska.

Romney also emphasizes energy efficiency and conservation. He supports research into hybrids, fuel cells and battery-powered cars and believes automakers should raise their fuel standards -- but voluntarily. He opposes recent federal regulations that raise fuel standards to 35 mpg by 2020, as well as any cap-and-trade program for carbon emissions that isn't simultaneously enacted globally.

Supporters:

• Jennifer Fonstad, Draper Fisher Jurvetson: $1,150
• Ken Lawler, Battery Ventures: $2,100
• William James, Rockport Capital Partners: $2,100
• Fred Kittler: Firelake Capital Management Fund: $2,300

Car: 2005 Ford Mustang - 20mpg

League of Conservation Voters score: No voting record. Scores limited to members of Congress.