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.
UN climate change chief Christiana Figueres is a long distance runner and constant traveler who calls wherever she is "home." Here is a thumbnail profile.
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.
A shepherd guides his goats through one of the stops along the light rail, a new form of public transportation, on May 8, in Addis Ababa, Ethiopia. There are two lines – the blue line goes north-south, the green line goes east-west. The mostly elevated train was constructed by the Chinese and opened in 2015.
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.