Every year marine species, from lobsters and fish to sea lions and birds, become trapped or entangled in lost, abandoned or discarded fishing gear. This “derelict gear” continues to capture fish and wildlife while at sea, even if no fishermen retrieves the catch. The Fishing for Energy partnership works to address this problem in two
An estimated 9 to 10 percent of Wisconsin wells have tested over safe limits for nitrate. Studies have estimated that 90% of nitrate in groundwater comes from spreading of synthetic fertilizers and dairy manure on farm fields, with most of the remainder from septic systems. Nitrate behaves differently. Relatively little lingers near roots where it
Despite the much-touted health benefits of fish, consumers may be getting more than just lean protein in their servings of seafood. Researchers have found that around a quarter of the fish in markets in Indonesia and California contained plastic or fibrous material in their gut. This study is one of the first to make a
In species from alligators to humans, males are being born less frequently than they were before. Environmental experts are examining the link between man-made chemicals and their role as endocrine disruptors. Exposure to phthalates, a common class of petrochemicals, can happen through air, water or food. They are contained in cosmetics, cleaning products and consumer
Introduced to Malheur Lake as early as the 1920s, likely as a food source for people living in the arid region, the invasive carp have now taken over the lake. Historically, Malheur Lake was utilized by up to 35% of the Pacific Flyway’s canvasback population, was the second most important redhead production site in the
In 2013 U.S. officials applied about 17 million tons of salt to roads. Salt lowers the freezing temperature of water and thus melts street-clogging snow and ice. But its public safety benefits do come with some ecological drawbacks. Salt not only damages metal and concrete, it contaminates drinking water, kills vegetation, and accumulates in streams,
Wild rice is an annual aquatic grass that produces seed that is a delicious and nutritious source of food for wildlife and people. Harvested in the early autumn, wild rice was an immensely important commodity to Native Americans, particularly the Ojibwe and Menominee, who lived in the areas where it grew abundantly. The Menominee even
Yosemite Valley is a glacial valley in the Sierra Nevada, part of the Yosemite National Park, drawing close to 3.7 million visitors annually. The Hetch Hetchy Valley is virtually an identical twin to Yosemite Valley, but you will never see its stunning rock formations and dramatic waterfalls. With steep valley walls, a narrow outlet and
Each fall, elementary school students gather along the Milwaukee River to release fingerling lake sturgeon—an act that symbolizes just how far the river has come. Once written off as polluted and lifeless, the Milwaukee River now supports more than 30 native fish species and has become a model of urban river recovery. Decades of environmental