US proposes stricter ozone limits

The US Environmental Protection Agency announced plans Wednesday to strengthen emission regulations for ozone, a smog-causing pollutant blamed for respiratory ailments affecting millions of Americans.

Key mechanism in the plant defense against fungal infections

Each year, fungal infections destroy at least 125 million tons of the world's five most important crops—rice, wheat, maize, soybeans and potatoes—a quantity that could feed 600 million people. Fungi are not only a problem ...

US high court mulls greenhouse gas limits

The US government defended its regulation of greenhouse gas emissions from power plants before the Supreme Court on Monday, after coming under attack from industry and Republicans alike.

EPA sets new ozone standard, disappointing all sides

The Obama administration on Thursday established stricter limits on the smog-causing pollution linked to asthma and respiratory illness, drawing swift condemnation from business leaders and Republicans who warned of damage ...

EPA sets stricter emission standards for oil refineries

The Environmental Protection Agency announced new rules Tuesday to reduce toxic air pollution from oil refineries by forcing operators to adopt new technology that better monitors and controls emissions.

Research reveals potential environmental harm of nanomaterials

Nanomaterials are a common component in many industrial and consumer products. A team of international researchers, led by University of Kentucky scientists, have found that these tiny metal-containing particles may be more ...

White House: Action needed now to slow climate change

Failure to act on climate change could cause an estimated 57,000 deaths a year in the United States from poor air quality by 2100, the Obama administration argued in a report released Monday that warns of dire effects of ...

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