100 People to Watch This Fall : Page 7 of 102

Michael Bloomberg New York City mayor and billionaire activist

Bloomberg can generate headlines on climate change — lots of them.

At the peak of the 2012 White House race, he threw his weight behind President Obama’s reelection, citing climate change as a top reason in the wake of Hurricane Sandy. It was by far the high-water mark of climate change politics in the race.

The move was hardly Bloomberg’s first foray into climate policy and politics. In 2011, he announced a $50 million gift to the Sierra Club for its work against coal-fired power plants.

In recent months Bloomberg has made gun control his top priority as he fights for tougher restrictions in the wake of the Newtown massacre. With the end of his long tenure as mayor around the corner, it’s yet to be seen whether the deep-pocketed, quotable mayor will return his focus to climate and coal policy.