Previous agreements to restrict greenhouse-gas emissions, including Kyoto, have largely failed. To curb global warming, negotiators are hoping countries will design and enforce their own cuts.
'We're committed to getting this done,' the White House's John Podesta said Friday of a new EPA proposal to limit carbon emissions from power plants. A business report showing a hit to the US economy contained 'fantasy job loss numbers,' he said.
How UN climate change chief Christiana Figueres became a fierce crusader to lower Earth's thermostat. A visceral connection to the planet – from the now-extinct golden toads of her childhood in the Costa Rican jungle to shrinking glaciers – moves her to tears.
Unsafe levels of toxins in drinking water in northwest Ohio are linked to algae blooms in Lake Erie. The blooms are fed by agricultural runoff, but that's not the full story.
Cattle generate twice as much methane as the EPA supposed, according to a new report. The study's findings may also change assumptions about the safety of extracting natural gas, which consists primarily of methane.