Anchor Lisa Mullins speaks with the BBC's Roger Harrabin, who's in Bali for the UN Climate Change conference. Negotiations at the meeting continue but little progress is reported. Critics say the United States is a major obstacle at the talks. US delegates have refused to commit to specific targets for reducing greenhouse gas emissions.

The World's Jason Margolis reports on the Sierra Gorda Biosphere in central Mexico. The biosphere was set up with the goal of preserving the forests that local farmers were cutting down for sale as timber. Now the biosphere's leaders are hoping Americans will pay to encourage local farmers to leave their trees standing, as part of a carbon offset program.

Anchor Lisa Mullins has details on the United Nations climate change conference in Bali, Indonesia. It entered its final stage today.

The World's Matthew Bell reports from South Korea, where parts of the country's western coastal region have been declared a disaster area. Oil from South Korea's worst spill ever is washing up on shore, and the Korean government is scrambling to clean up the mess.

In an effort to limit the use of air conditioning, delegates to the UN Climate Change Conference in Bali are sporting new shirts.

A key United Nations conference on climate change got underway in Bali, Indonesia today. One of the topics on the agenda is the protection of tropical forests. They're dwindling fast under the double threats of logging and forest fires. Forests are vanishing especially quickly on the southeast Asian island of Borneo. But some communities there are bucking the trend. They're preserving their old-growth forests. Reporter Trish Anderton visited one such remote village in the southern, Indonesian part of Borneo.

The World's Jason Margolis previews a key climate change conference that starts next week in Bali, Indonesia. The goal of the conference is to start hammering out a new climate change treaty that would replace the UN's Kyoto Protocol when it expires in 2012.

The World's Gerry Hadden reports on the debate in Germany over nuclear power. Many European countries are planning to build new nuclear power plants in an effort to diversify energy resources and reduce greenhouse gas emissions. But Germany is bucking the nuclear trend. It's actually thinking of phasing out its nuclear plants.

A new on-line game gives users a chance to test their vocabulary...AND help out in the global fight against hunger. The World's Technology correspondent Clark Boyd reports on the website "freerice.com."

Dorian Jones reports from Istanbul on Turkey's plans to develop nuclear energy. The Turkish government says it needs nuclear plants to meet growing domestic demand for energy. But some fear Turkey also wants to develop nuclear weapons, to fend off neighboring Iran.