Deal connects one of the largest, most scenic dune fields in North America AUSTIN, Texas, May 5, 2011 /PRNewswire-USNewswire/ -- The Nature Conservancy has donated its 177-acre Gypsum Dunes Preserve in the famed Texas panhandle to the National Park Service.

On Thursday, one of the world’s wealthiest men, Mexican billionaire Carlos Slim, launched a joint $100 million project with the Mexican government and the World Wildlife Fund to protect Mexico’s environment.

WASHINGTON, March 19 /PRNewswire-USNewswire/ -- The Rio Grande is among the world's top ten rivers at risk, according to a report by the same name released today by World Wildlife Fund.