News bites: GOP White House candidates run from climate positions, EPA seeks Western pollution curbs, and more

The Washington Post explores EPA efforts to curb haze-causing pollution from coal plants in Western states.

The Wall Street Journal reports that energy companies are bowing to pressure to disclose information about chemicals used in hydraulic fracturing, the controversial natural-gas extraction method.

The Christian Science Monitor examines the struggles of GOP White House hopefuls to define their positions on climate change.

The New York Times’s editorial board slams American Electric Power for “deceptive” claims about the effect of pollution rules the utility wants to delay.

Canada’s Postmedia news service — via The Vancouver Sun reports on research showing that tree-planting isn’t a cure for global warming.

Bloomberg reports on the United Nations nuclear agency’s probe of the Japanese reactor disaster — and criticism about an alleged lack of transparency in the proceedings.