For today's Geo Quiz we were looking for the Australian state where millions of wild pigs are posing a big problem for residents right now. The answer is Queensland. The BBC's Phil Mercer explains why the pigs are creating environmental havoc.

Hydro electric dams have gotten a bad rap in the developing world. They're accused of causing economic and environmental ruin...and inviting massive corruption. But the South East Asian country of Laos is being hailed as a shining example of doing it right. Correspondent Jonathan Kent reports.

Egypt announced today it plans to build several nuclear power plants. But unlike Iran, the program will be developed in cooperation with the International Atomic Energy Agency -- the IAEA. Anchor Lisa Mullins gets the story from David Albright, a former nuclear inspector...now President of the Institute for Science and International Security in Washington.

Dan Collyns reports from a small town in the Peruvian mountains where nearly everyone has too much lead in their blood. The town is called La Oroya, and its home to a metal processing plant run by an American company. Town residents blame their lead problems on emissions from the plant.

An increasing number of companies around the globe recognize the importance of developing products that are environmentally friendly or at least appear to be environmentally friendly. But are they? Anchor Marco Werman finds out more from reporter Mark Anslow of the environmental affairs magazine, Ecologist.

The World's Emma Lydersen reports on a new law that went into effect today in Norway. It puts a limit on the environmental claims car companies can make in their ads.

For today's Geo Quiz we were looking for the largest and most populous city in Ecuador. The answer is Guayaquil. The city is one of the ports of call for a floating university called the Scholar Ship. Anchor Lisa Mullins finds out more about the sea-faring school from Yvonne-Marie Linton, a scientist aboard the ship.

Our daily geography puzzler.

The North-West Passage is an ocean route that connects the Atlantic with the Pacific...though it's never been travelled by boat. The arctic passage has been frozen solid...until now. For the first time since scientists have monitored the area, the passage is mostly clear of ice. The BBC's David Shukman reports from a Canadian Coast Guard ship in northern Canada.

Al Gore's environmental documentary, "An Inconvenient Truth," so impressed the British government that it's shown in British schools. But today a High Court judge in London ruled that the documentary contains unsubstantiated claims. The BBC's Roger Harrabin has the story.