Diesel Exhaust Goes Unchecked

The 1990 Federal Clean Air Act set limits on how much air pollution is safe. But currently, more than fifty urban areas nationwide violate that law. Much of that pollution is caused by vehicle exhaust. To combat the problem, cars are routinely checked and required to meet certain emissions standards. But diesel trucks have escaped much of that scrutiny. The Great Lakes Radio Consortium’s Steve Frenkel explains why:

D-D-E May Degrade Naturally

The notorious pesticide D-D-T was banned in the United States in the 1970’s. But D-D-T left behind several toxic byproducts. One of those is D-D-E. However, a new study published in this month’s Science magazine suggests that D-D-E may be decaying naturally. The Great Lakes Radio Consortium’s Steve Frenkel reports:

Solving the Farm Odor Problem

The expansion of large scale hog and chicken farms continues to be acontroversial issue throughout much of the Midwest. The foul odor fromthe animal manure has angered rural residents. Now, scientists aretrying to minimize the stench by learning what makes manure smell sobad. The Great Lakes Radio Consortium’s Steve Frenkel reports:

Policing Ballast Water

Controlling exotic species in the Great Lakes hasn’t been easy. Scientists have been unable to slow the spread of things like the zebra mussel. But they still have a chance to prevent other non-native species from infesting Great Lake waters. The Great Lakes Radio Consortium’s Steve Frenkel reports on a potential breakthrough:

Colored Plastics Threaten Recycling Industry

More and more dairies are packaging their milk products in colorful plastic containers instead of clear plastic. But some say that may be hurting the plastic recycling industry. The Great Lakes Radio Consortium’s Steve Frenkel reports:

Buildings Pose Threat to Bird Migration

Each Spring, nearly five billion migratory birds make their way back to North America after spending the winter south. But only about half of all birds survive the journey. And while millions die of exhaustion or starvation, many other birds die from less natural causes. The Great Lakes Radio Consortium’s Steve Frenkel reports:

Restoration Practices Generating Controversy

Years ago, forest preserves were established in many American cities toprotect valuable natural areas from urban development. But over theyears, the health of those preserves has declined. Conservationists arenow trying to repair the damage by actively restoring those naturalareas. But now, some of their techniques are being questioned. TheGreat Lakes Radio Consortium’s Steve Frenkel reports:

New Corn Variety Lowers Agricultural Impact

Manure spills and overflow from large hog farms has become a problem for many local waterways. Those spills often contains high levels of nitrates and pesticides which can endanger fish populations and contaminate water supplies. But now, researchers have found a variety of corn that could make hog manure less harmful. The Great Lakes Radio Consortium’s Steve Frenkel Reports:

Female Hormones Found in Waste Water

Millions of American women rely on birth control pills to prevent pregnancy. Millions more depend on replacement hormones to prevent symptoms of menopause like hot flashes and osteoporosis. Both medications contain a synthetic version of the female hormone estrogen. And now, researchers at the University of Mississippi found that some of that estrogen ends up in wastewater. The Great Lakes Radio Consortium’s Steve Frenkel has more on the potential effects:

Illinois River to Be Protected

The U.S. Department of Agriculture and the State of Illinois are teaming up to save the heavily polluted Illinois River. The project is being hailed as the nation’s "largest effort to save an ailing river." The Great Lakes Radio Consortium’s Steve Frenkel reports: