RPT-INSIGHT-Keystone's death bolsters "keep carbon in the ground" camp

WASHINGTON/LOS ANGELES Nov 10 (Reuters) - For environmentalists dedicated to killing it, President Barack Obama's rejection of the proposed Keystone XL pipeline unleashed a moment of euphoria. Activists celebrated with tequila shots at Sierra Club headquarters in San Francisco and in Lafayette Square across from the White House, site of the first anti-Keystone protests in 2011, when to most people it was just another pipeline.