Read more: http://www.nydailynews.com/gossip/20...#ixzz0qx7dlvt8Al Gore's surprising split from wife Tipper was prompted by an affair he was having with Larry David's environmental activist wife, Star magazine reports.
The tabloid weekly says the environment-friendly ex-veep and the comedian's ex have been involved for two years.
Laurie David is an outspoken Hollywood environmentalist and a trustee of the Natural Resources Defense Council who makes frequent appearances at political events.
She co-produced the Academy Award winning documentary about Gore and his campaign against global warming, "An Inconvenient Truth."
"Al and Laurie went from friends to lovers," Star quotes an unnamed insider as saying. "It couldn't be avoided."
David divorced her husband, the "Seinfeld" creator and "Curb Your Enthusiasm" star, in 2007 amid reports that she was cheating with the married caretaker of their Martha's Vineyard summer home.