THE double Oscar win for An Inconvenient Truth, former US vice-president Al Gore's expanded slide-show on global warming, could spur grassroots support for the fight against climate change, environmental advocates say. That was because a movie, especially one that many people had seen on home video, took the issue beyond the realm of distant policymakers and put it on a more personal footing, according to Carl Pope, executive director of the Sierra Club. "The funny thing about the Oscars is, they're very intimate - people watch them in their living rooms," Mr Pope said. "Global warming has seemed abstract, distant,...