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The first Earth Day was celebrated on April 22, 1970. Energy & Waste The average American produces more than four pounds of garbage per day. Over the course of a year, that is more than 1,600 pounds of garbage per…
A shark smells prey and swims toward it. The meal is some bait attached to a camera on the ocean floor. The big fish heads to the camera, and it is caught on video. The scene is not for a…
California has survived many droughts. But the current dry spell, now in its fourth year, is one of the most severe the state has ever experienced. A shortage of precipitation has left lakes, reservoirs, and other sources of water at…