No, I'm not particularly sporty <a href="http://www.ecocity.gr/index.php?fosamax-70-mg-side-effects" rel="nofollow" target="_blank">fosamax femur lawsuit</a> The study estimates that in 2008, the U.S. poured 49 million tons of methane into the air. That means U.S. methane emissions trapped about as much heat as all the carbon dioxide pollution coming from cars, trucks, and planes in the country in six months.<br />