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.
Five-year-old Lenny Popova, of Arlington, Va. inspects the teeth of a Tyrannosaurus rex at the National Zoo, in October 2000. The Tyrannosaurus, meaning 'tyrant lizard' lived in Western North America during the last part of the Cretaceous Period, about 68 to 65 million years ago.
Using clever hoaxes, the two activists use their hilarious pranks to skewer corporate fat-cats.
In the race for the best green auto technology, Detroit is a slightly late entrant. But from battery innovation to re-training workers, the Motor City is going to give green a go.
Car companies received more than $600 million on Wednesday to further development of batteries for hybrids and electric cars.
Vince Guaraldi in his essence, 'Life on Mars' TV series now on DVD, creativity at its best in '500 Tables, and more.
According to Standard & Poor's, 181 companies this year have defaulted on their debt – four times the number last year.
Some consumer-products companies are starting to pass on higher energy costs to consumers.