Florida Gov. Charlie Crist is getting intense heat from his party's right wing over his support of climate legislation, fueling speculation that the popular politician may move away from "pro-green" positions that have been praised by top Democrats and environmentalists.

The pressure is rising as Crist launches his U.S. Senate campaign, trying to replace the retiring Republican one-term Sen. Mel Martinez. Though Crist remains a solid front-runner to win the nomination and the seat, some environmentalists say attacks from a conservative challenger and sharp criticism from GOP activists have forced the governor to move to the right on environmental issues.

Despite worries, Eric Draper of Audubon says, "I think Governor Crist is really committed to the issues having to do with climate change solutions; he understands, and he is committed to them." The hope is that his commitment manifests itself into action and results.

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