What you learn by giving 200 Senate speeches on climate change

Every week the Senate has been in session since April 2012, one lonely Democratic senator from Rhode Island, Sheldon Whitehouse, has taken to the Senate floor to speak about global warming. On March 13, Senator Whitehouse gave his 200th “It’s Time to Wake Up” speech on climate change. 
The speech was atypical for Whitehouse, who has grown accustomed to the unsettling feeling of standing virtually alone on the Senate floor while speaking about a topic that he believes is of