Are most people concerned about imminent global warming? Well one may think so, but a new poll indicates at least half the public is cool to the idea of a significant global warming threat, at least anytime soon. Commissioned by NBC News and the Sci-fi channel, the poll found that only 47 percent of those interviewed believed global warming will happen in their lifetime. This is significantly below greater concerns such as an act of terrorism, for which eighty percent of those polled believed it was likely to occur, or a pandemic, which registered as a seventy four percent likelihood. With concerns over global warming only slightly higher than those regarding the threat of an asteroid colliding with earth, it seems Al Gore has his work cut out for him!