TVA Kingston Fossil Plant (coal fly ash pond)-Dec. 22, 2008: Ash dike ruptured at a waste containment area in the Tennessee Valley Authority’s Kingston Fossil Plant in Roane County, Tenn., releasing 1.1 billion gallons of toxic coal fly ash slurry, the largest such release in U.S. history, which spilled into the Emory River. Estimated costs to clean are $525 million-$825 million, as cleanup is ongoing. (Source: TVA, EPA)
As the BP oil spill cleanup continued last week, Senator Charles Schumer (D-NY) proposed new legislative action that would raise the BP's liability. Are we entering a new era of increased regulation?
Minneapolis and Buffalo, N.Y., are the only two large metro areas that saw jobs climb or unemployment rates fall over the past year.
10 - The Gateway Arch: Located in St. Louis, Mo., The Gateway Arch, or the Gateway to the West, is 630 ft. tall and 630 ft. wide. It was completed in 1965. Visitors can take a tram to to top for a spectacular view of the Mississippi river and southern Illinois.
The Dust Bowl. During the 1930s, a period of severe dust storms engulfed the American and Canadian prairie lands. The cause: a severe drought coupled with decades of land misuse that left topsoil susceptible to the wind. The so called "black blizzards" forced hundreds of thousands of people in Oklahoma, Texas, New Mexico, Colorado, and Minnesota to abandon their farms, exacerbating the dire economic conditions of the Great Depression. This image shows a dust storm approaching Stratford, Texas, on April 18, 1935.
For this year's Earth Hour, set for 8:30 p.m. Saturday, more businesses and governments are expected to take part in the campaign to turn off the lights. The aim: at least 1 billion participants.
New survey shows 30 cities saw home prices rise in the third quarter.
The Amazon Rainforest is one of 28 sites picked as finalists in a global poll to name the New Seven Wonders of Nature, conducted by the Swiss nonprofit New7Wonders Foundation. The Brazilian Amazon, pictured here, harbors 40 percent of all remaining tropical rainforest, playing a vital role in global biodiversity and in protecting the earth's climate.