U.S. News

Air pollution and diabetes: Pollution levels too high

A new national study has found that there is a statistical correlation between exposure to air pollution and adult diabetes.

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Oil companies trying to block California clean air laws

Texas-based oil giants Valero and Tesoro, among the biggest polluters in the nation, are the main backers of Proposition 23, which would suspend California's clean air laws.

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Down at the docks, cleaner air may be coming

The docks near you might be getting a breath of fresh air soon, with a crucial piece of environmental legislation introduced into Congress last week.

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EPA declares CO2 a threat to human health

The Environmental Protection Agency's announcement sets the stage for federal regulation of industrial CO2 sources like coal-fired power plants, refineries and factories.