Count former Vice President Al Gore among liberals dissatisfied with President Barack Obama.

Gore, in a Rolling Stone essay to be published Friday, rips the Democratic president for not making sufficient progress on global warming, the Associated Press reported Wednesday.

“President Obama has never presented to the American people the magnitude of the climate crisis,” Gore writes in the 7,000-word essay. “He has not defended the science against the ongoing withering and dishonest attacks. Nor has he provided a presidential venue for the scientific community … to bring the reality of the science before the public.”

Gore gives some credit to the Obama administration for making smaller climate-related changes that move the country “forward slightly,” Gore writes. Obama, he said, “has simply not made the case for action.”

Gore, an enthusiastic Obama backer in 2008 who threw the new president a “green” inaugural ball, didn’t comment on the piece to the AP. His piece, according to pieces excerpted by the AP, appears to focus as much on Obama’s public rhetoric and statements as it does on the actions of his administration.

Obama sought to pass a carbon emissions cap-and-trade bill in 2009. The legislation narrowly passed the House, but stalled in the Senate. Scores of Tea Party-backed Republicans used Democrats’ vote on the legislation as campaign cudgels last year. Even Sen. Joe Manchin (D-W.Va.), then a candidate, filmed himself shooting a copy of the legislation during a 2010 TV advertisement.

Gore also took Obama to task for not accomplishing more at the worldwide climate summit in Copenhagen in 2009.

“During the final years of the Bush-Cheney administration, the rest of the world was waiting for a new president who would aggressively tackle the climate crisis, and when it became clear that there would be no real change from the Bush era, the agenda at Copenhagen changed from ‘How do we complete this historic breakthrough?’ to ‘How can we paper over this embarrassing disappointment?’ ” Gore wrote of the conference at which 193 nations drafted a global treaty to reduce greenhouse gases.

(Source: Politico)