@therightsideFTA:"Which brings us to global warming. Most scientists now believe that the tipping point for global disaster is a CO2 level of 450 parts per million. We are now at just over 380 ppm and could pass 500 ppm in thirty years — in which case, in the words of Dr. James Hansen, the NASA scientist whose grim climate predictions have been coming true for the last thirty years, "We will hand our children a planet that has entered a long, chaotic, transient period with climate changes out of their control, as the planet heads inexorably toward an ice-free state." There are skeptics, of course, some of them quite distinguished, and a legitimate debate about just how bad things could get. But the bet is all or nothing, and an alarming number of the "cautious" are the same people who said cigarettes don't cause cancer, seat belts are a waste of money, and evolution is a hoax."Pay particular attention to the last sentence, because it's a truthful correlation. The science is solid and no sceptic/denier has been able to step up to the plate to definitively demonstrate it otherwise. That conclusively demonstrates your wilful, prideful ignorance.