Full Senate Testimony of Climatologist Dr. Roy Spencer formerly of NASA: ‘Weather and climate vary naturally, and by amounts that are not 2 currently being exceeded; (2) global warming theory is just that – based upon theory; & (3) there is no unique fingerprint of human caused global warming’
Spencer is Principal Research Scientist IV University of Alabama, Huntsville: 'The belief that global warming and associated climate change involve more severe weather cannot be supported observationally...There is little or no observational evidence that severe weather of any type has worsened over the last 30, 50, or 100 years, irrespective of whether any such changes could be blamed on human activities, anyway. Long-term measurements of droughts, floods, strong tornadoes, hurricanes, severe thunderstorms etc. all show no obvious trends, but do show large variability from one decade to the next, or even one year to the next.'