New York Times: Tom Steyer, the billionaire climate activist, recently contributed $5 million to a super PAC dedicated to keeping Democrats in control of the United States Senate, cementing his alliance with the party as the 2014 campaign swings into high gear. Mr. Steyer, a retired hedge fund manager, has used some of his fortune in an effort to make climate change a more potent political issue in pivotal states like Florida, Iowa and Virginia. He is planning to raise $100 million to run campaigns on climate...