Egypt's 80 million people have always depended on the Nile River. Under a 1929 treaty, 80 percent of the river's flow is reserved for Egypt and Sudan, which were then ruled as a single country. Now the seven upstream countries (Ethiopia, Uganda, Tanzania, Kenya, the Democratic Republic of Congo, Burundi, and Rwanda) want to revise the treaty, calling it an unfair relic of colonialism.

"Great Lakes pollution is getting worse because sewage systems are outdated and Ontario’s north is turning into a Wild West for miners and forestry companies, warns Environmental Commissioner Gord Miller."

"The oil giant nears an agreement to dispense $500 million through an alliance overseen by gulf state governors. Critics fear expertise elsewhere will be overlooked."

"A new generation of prospectors is eager to explore the ocean floor. Will deep-sea digging damage one of the earth’s most valuable ecosystems?"

"A number of the playful marine mammals are being poisoned by an ancient microbe that appears to be on an upsurge in warmer, polluted waters around the world."

"Children whose drinking water contains high concentrations of manganese appear to have lower IQ scores on average than children not exposed to the metallic element, researchers have found."

The Senate Banking Committee on Wednesday, September 22, will hold a hearing on the National Flood Insurance Program, which is teetering under some $19 billion in debt. The NFIP is set to expire Sept. 30, just as the hurricane season reaches its height. Congress has allowed the NFIP to expire four times already this year.

"America's warning system for the series of giant ocean waves known as a tsunami is better than it was before the deadly 2004 Indian Ocean tsunami, but not good enough to meet risks posed by tsunamis generated near land that leave little time for warning, says a new congressionally requested report from the National Research Council."

"The New Mexico Environmental Law Center today appealed to the U.S. Supreme Court to reverse a lower court decision that allows uranium mining in the Four Corners region of New Mexico. The appeal claims the mine would contaminate drinking water used by some 15,000 Navajo people."