The U.S. and Canada limited the use of phosphate laundry detergents and cracked down on Great Lakes pollution from industry and municipal sewage systems four decades ago.

NPR: Report Predicts Ever-Bigger Lake Erie Algae Blooms

After suffering a punishing year because of low natural gas prices, the wind power industry is keeping close watch on the prospect that water pollution from hydraulic fracturing may lead to regulation of shale gas drilling.

FORBES: Wind Power's Future May Depend On Gas Fracking's Fate: Panel

Hydrogen has the virtue of removing the auto industry from the environmental debate, even if it creates the same or more pollution upstream.

FORBES: On The Cover/Top Stories

Professor Roy Harrison, a member of two UK government advisory committees on air pollution, said US research had provided strong evidence that fine particles contained in emissions from vehicles and industry caused cancer.

BBC: Traffic