"A dark legacy of the Vietnam War is creating a whole new set of problems. ...Why hundreds of thousands of Vietnam vets with Agent Orange–related diseases have been made to suffer without VA health care."

"When presidents and prime ministers departed the U.N. climate conference in Copenhagen last month, they left behind a vast legal tangle that experts have barely begun to unravel."

"Mahe Noor left her village in southern Bangladesh after Cyclone Sidr flattened her family's home and small market in 2007. Jobless and homeless, she and her husband, Nizam Hawladar, moved to this crowded megalopolis, hoping that they might soon return home. Two years later, they are still here."

"Due to human activities, the world's animal and plant species are disappearing at a rate some experts put at 1,000 times the natural progression, the United Nations said January 1, marking 2010 as the International Year of Biodiversity."

"Just as wars over oil played a major role in 20th-century history, a new book makes a convincing case that many 21st-century conflicts will be fought over water."

"A Canadian firm says U.S. use of defoliants in Vietnam has left perilous dioxin levels, but that the issue is solvable."

"Anywhere that people can go online they can trace the proposals and plans of countries to combat climate change through an online climate pledge tracker website newly established by the United Nations Environment Programme."

"One environmental leader says if we keep doing what we're doing, the world will continue on a path toward economic decline and eventual collapse."