text: Environment & Energy reports on the Nature paper we highlighted 2 weeks ago finding no increase of climate variability over the past 50 years . According to the authors, "Our findings contradict the view that a warming world will automatically be one of more overall climatic variation" and "Evidence from Greenland ice cores shows that year-to-year temperature variability was probably higher in some past cold periods." Furthermore, the paper finds, "Many climate models predict that total variability will ultimately decrease under high greenhouse gas concentrations..." The paper corroborates other peer-reviewed papers , the IPCC SREX Report , and the Congressional testimony of Dr. Roger Pielke, Jr. & Dr. John Christy finding no evidence of any increase of extreme weather or climate variability with global warming.