Eastern monarch butterfly at risk of extinction
The population of the Eastern monarch butterfly declined 84 percent in less than two decades, says a team of researchers.
Toxins in ocean fish drop dramatically in last 40 years
The level of mercury has dropped 50 percent in ocean fish and the level of polychlorinated biphenyls (PCBs) has fallen more than 90 percent in the last 40 years, according to a new review by researchers at the Scripps Institution of Oceanography in La Jolla, California.
It’s so dry out West it can be measured by GPS
Researchers say the Global Positioning System, which helps drivers navigate the roads and which monitors tiny movements of the earth's surface as a possible indicator of developing earthquakes, has measured the huge loss of water due to severe drought in the West, says National Geographic.