Ozone Levels Bounce Back, Showing First Increase In 35 Years
NASA says that a ban on CFCs enacted in the 1980s has contributed to a 4 percent rebound since 2000 in atmospheric ozone in mid-northern latitudes.
Every few generations, a challenge arises for leaders around the world.
Climate scientists paint a grim picture of life on earth in just a few generations given the steady march of global warming.
The impact of global warming on the Arctic poles is well documented and easy to see. But scientists are just now beginning to understand the impact of rising temperatures on tropical forests
Manu National Park in southern Peru is known as the most biologically diverse place on earth.