Banned Chemicals Persist In Deep Ocean
Chemicals banned in the 1970s have been found in the deepest reaches of the Pacific Ocean, a new study shows. Scientists were surprised by the relatively high concentrations of pollutants like PCBs and PBDEs in deep sea ecosystems. Used widely during much of the 20th Century, these chemicals were later found to be toxic and to build up in the environment.
El Niño: California Beach Erosion In 2015/16 Highest Ever Recorded
El Niño didn’t deliver pounding rain, but it gave California’s coastline a powerful beating during the winter of 2015/16. Rainfall levels were lower than anticipated, but beach erosion was the highest in more than 145 years, according a study released Tuesday by the U.S. Geological Survey. Scientists studied 1243 miles along the West Coast from Washington to Southern California, making 3-D surface maps, GPS topographical surveys and measuring sand, wave and water levels at each beach, and published their findings online in the journal, “Nature Communications.”