Carbon pricing works, major meta-study finds

Between 5 and 21% emission reductions: this is the empirically measured effect of carbon pricing systems in their first few years of operation. A research team now identifies these findings for 17 real-world climate policies ...

Brazil's Porto Alegre: a flood disaster waiting to happen

Porto Alegre, the Brazilian metropolis left submerged after torrential rains, had been lulled into a "false sense" of security by a vast but aging system of flood defenses, an urban drainage engineer told AFP.

'Forever chemicals' found to rain down on all five Great Lakes

Perfluoroalkyl and polyfluoroalkyl substances, also known as PFAS or "forever chemicals," have become persistent pollutants in the air, water and soil. Because they are so stable, they can be transported throughout the water ...

Wildfire closes in on Canadian oil sands city

A wildfire in Canada's major oil-producing region doubled in size as it drew closer to the city of Fort McMurray on Wednesday, but officials were hopeful shifting winds could soon push it away.

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