That hamburger in the hand of so many Americans does have global implications. Our meat-eating habits can impact the tropical rainforests and savannas -- and ultimately the atmosphere. Livestock may contribute some 18 percent of greenhouse gases -- and that matters for both the 1 billion hungry and 1.6 billion overweight people on the planet. Wendee Holtcamp reports for The Daily Climate January 19, 2011.
Source: Daily Climate, 01/21/2011