All fuels have enviromental problems. This thread considers them. Try to give facts, not just your views, but rational views, derived from facts are welcome and encouraged. Excerpts from BBC News website 24 Nov.05 By Richard Black: Current levels of the greenhouse gases carbon dioxide and methane in the atmosphere are higher now than at any time in the last 650,000 years. Over a five year period commencing in 1999, scientists working with the European Project for Ice Coring in Antarctica (Epica) have drilled 3,270m into the Dome C ice, which equates to drilling nearly 900,000 years back in time. Gas bubbles trapped as the ice formed yield important evidence of the mixture of gases present in the atmosphere at that time. Project leader, Thomas Stocker from the University of Bern, Switzerland.: "We find that CO2 is about 30% higher than at any time, and methane 130% higher than at any time; and the rates of increase are absolutely exceptional: for CO2, 200 times faster than at any time in the last 650,000 years."…Other research, also published in the journal Science*, suggests that sea levels may be rising twice as fast now as in previous centuries. Using data from tidal gauges and reviewing findings from many previous studies, US researchers have constructed a new sea level record covering the last 100 million years. They calculate the present rate of rise at 2mm per year. "The main thing that's changed since the 19th Century and the beginning of modern observation has been the widespread increase in fossil fuel use and more greenhouse gases," said Kenneth Miller from Rutgers University. The Intergovernmental Panel on Climate Change, the body which collates scientific evidence for policymakers, concludes that sea level rose by 1-2cm during the last century, and will rise by anything up to 88cm by the end of this century. _______________________________________________ *"The European Project for Ice Coring in Antarctica," by Thomas Stocker, Science, Nov. 2005.