Obama has constantly been vocal about the effect of global warming on the planet and has done his part in trying to save it as much as possible. He signed Omnibus Public Lands Management Act (2009), which designated more than 2 million acres as wilderness, created thousands of miles of recreational and historic trails, and protected more than 1,000 miles of rivers. He also appeared on Bear Grills' show to voice his concerns about the effects of global morming