The Alps' largest glacier, Aletsch Glacier, extends more than 14 miles and covers more than 46 square miles.
The Little Ice Age brought colder, snowier winters to Europe, starting in about 1550. Many paintings at the time documented the climate change, including Pieter Bruegel's "Hunters in the Snow,"painted in 1565.
Glaciers in the Alps of Europe pose a scientific mystery. They started melting rapidly back in the 1860s. In a span of about 50 years, some of the biggest glaciers had retreated more than half a mile.
But nobody could explain the glacier's rapid decline. Now, a new study from NASA's Jet Propulsion Laboratory uncovers a possible clue to why the glaciers melted before temperatures started rising: Soot from the Industrial Revolution could have heated up the ice.
For almost 20 years Washington's Department of Ecology has known that the state's water pollution limits have meant some Washingtonians regularly consume dangerous amounts of toxic chemicals in seafood from local waterways.
The Environmental Protection Agency has urged the state to fix the problem. The Department of Ecology was close last year when Boeing and other business interests began lobbying against the changes. Robert McClure from Investigate West uncovered the story through interviews and government document requests and he gives an update to Ross Reynolds.
Air pollution from the major shipping ports in Puget Sound has decreased, according to a new report released Tuesday. The 300-page report compared emissions of diesel particulates, greenhouse gases and other air pollutants in five Puget Sound ports from 2005 to 2011. Overall, emissions have gone down.