Hansen argues that rising global temperatures are fueling an increase in extreme weather . He cites a 2010 heat wave in Texas and last year 's Russia drought as examples . James Hansen , an activist , directs research at Washington Post .
James Hansen argues that rising global temperatures are fueling an increase in extreme weather . He cites a 2010 heat wave in Russia and last year 's Texas drought as examples . Hansen , an activist , directs research at the NASA Goddard Institute for Space Studies .