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"Although contaminants buried in the sediments of Green Bay may be out of sight, they should not be out mind, according to research published last month in the Journal of Great Lakes Research. Two invasive species – the quagga mussel and round goby – can allow a group of toxic chemicals deposited more than 45 years ago to reenter the food web, passing them to predatory fish and possibly people."

"Pesticides bring major benefits to modern agriculture, keeping dangerous bugs and fungi and pathogens at bay while boosting yields and making farming more efficient. But what about risks? Like any chemicals — manmade or not — pesticides can be bad for human health and ecosystems if they’re toxic enough and the amount that ends up in the environment is high enough. It’s often tough, however, to get a clear picture of the full array of problems a pesticide may cause."

"HINKLEY, Calif. -- Maneuvering his pickup through this Mojave Desert town, resident Daron Banks pointed at empty lot after empty lot."

"U.S. consumer groups, scientists and food companies are testing substances ranging from breakfast cereal to breast milk for residues of the world's most widely used herbicide on rising concerns over its possible links to disease."