DDT, the insecticide that was once widely used and is now banned in the United States, could be contributing to high obesity rates in the United States.
An Oregon Zoo Foundation-funded study has cracked the mystery of why some California condor eggs don’t hatch.
Several environmental groups say they will sue the Environmental Protection Agency to get it to hurry up and raise the fish consumption rate in Washington. The rate helps determine how clean state waterways need to be to protect the health of people who eat fish caught there.
Starting Wednesday, the Environmental Protection Agency will begin gradually phasing out the pesticide [endosulfan](http://www.epa.gov/opp00001/reregistration/endosulfan/ ""). For many farmers in Oregon, including Christmas tree growers, the chemical was both cheap and effective. But it also put wildlife and the health of agricultural workers at risk.