WASHINGTON — Former Vice President Al Gore is doing what few environmentalists and fellow Democrats have done before, criticizing President Barack Obama’s record on global warming.

In a 7,000-word essay for Rolling Stone magazine that was posted online Wednesday, Gore says Obama has failed to stand up for “bold action.” Gore contends that Obama has made little progress on the problem since Republican President George W. Bush. Bush infuriated environmentalists by resisting mandatory controls on the pollution blamed for climate change, despite overwhelming scientific evidence that the burning of fossil fuels is responsible.