Fires are burning out of control across parts of Southern California. Dry, windy, and hot weather conditions are slowing down the efforts to put out the fires.
No ocean-borne radiation from Japan’s Fukushima nuclear power plant disaster has yet been detected in analysis of kelp samples along the western U.S. coastline.
Here's why climbers use supplemental oxygen to climb Mount Everest. Also, the curtailment of the 2014 Everest climbing season following a deadly avalanche.