Al Gore is boycotting the Democratic National Convention because he doesn’t get along with President Obama and is disappointed that Obama hasn’t pushed harder for a cap-and-trade law that would force Americans to use less fossil fuels, sources tell Flash.

While tens of thousands of Democrats from across the country are gathered in Charlotte, N.C., Gore stayed in New York to cover the convention for his struggling Current TV channel. “Gore was not treated respectfully by the Obama team. He’s snubbing them, because they snubbed him,” said one Democratic fundraiser.

Former President Bill Clinton has been given an active role in Obama’s re-election effort, and was given a prime-time slot to speak just before Obama accepted his nomination last night. But Clinton’s running mate, a winner of the Nobel Peace Prize, has been an invisible man.