Japan's nuclear regulatory agency has declared an emergency over radioactive water flowing into the ocean from the Fukushima Daiichi nuclear power plant and the government has stepped in for the first time to take a direct role in fixing the problem.
The World's Mary Kay Magistad reports on Southeast Asia's largest lake ? Cambodia's Tonle Sap ? and why environmentalists are worried about its future. Dams, logging and overfishing are some of the factors threatening the lake's ecosystem.
French President Nicholas Sarkozy wants to impose a carbon tax on households and businesses that emit greenhouse gases. But the French say they feel too taxed already. Anchor Marco Werman finds out more from Guillaume Debre of the French TV Channel TF-1.
The maritime authorities in Australia are trying to stabilize a coal carrier which has run aground near the Great Barrier Reef. The Chinese-registered ship is balanced precariously and the fear is that it could spill hundreds of tons of oil into the sea.
For today's Geo Quiz we're looking for the last town in the Mississippi River Delta. The answer is Venice, Louisiana. Anchor Marco Werman speaks with Jay Holcolm, director of the International Bird Rescue Research Center.