James Hansen

  • April 2, 2013    

    Revisit NewsHour’s interview with retiring NASA climate scientist James Hansen, who discussed why summer droughts in the summer of 2012 were linked to climate change. James Hansen, an outspoken advocate for action on climate change, announced Monday that he is … Continue reading

  • August 6, 2012  

    A new statistical analysis from NASA reveals that the extreme summer heat felt by many Americans this year is the result of global warming. Hari Sreenivasan talks to Columbia University’s James Hansen who says the greatest barrier to public recognition of human-made climate change is the natural variability of local climate. Continue reading