Articles from the August 21, 2015 edition

Aug 21, 2015

Blue-green algae poses threat to recreation and drinking water Walterville Pond A report from Oregon State University concludes that blooms of blue-green algae (or toxic cyanobacteria) are a poorly monitored and underappreciated risk to recreational and drinking water quality in the United States. It may also be a growing global health threat. Contributing to the concern are rising temperatures and carbon dioxide levels. Many rivers have been dammed worldwide, and wastewater nutrients or agricultural fertilizers in various situations can cause...