Julia Kumari Drapkin reports from Panama on efforts to protect jaguars, the biggest cats in the all of the Americas. She profiles one group's work to find the corridors that jaguars use to move between protected areas.

For best results, please allow video to load completely before playing. Or click here to view on Vimeo, YouTube, or Blip.tv. Also, see photos and read the transcript. Produced by Julia Kumari Drapkin.

For today's Geo Quiz we were looking for the common theme that connects Australia's coastal region "The Great Sandy," North Korea's Mount Myohyang, and Lagunas de Montebello, near the border between Mexico and Guatemala. The answer is....they are all newly deemed 'biosphere reserves.'

Our daily geography quiz.

Environmental scientists are excited about ideas for reducing carbon in the atmosphere through geo-engineering. Anchor Lisa Mullins has details.

One of the participants at this week's Nobel symposium on climate change was Yuan Tseh Lee. He's a native of Taiwan who won the Nobel Prize for Chemistry in 1986. Anchor Lisa Mullins speaks with him about the meeting that just ended in London.

A 3-day Nobel Laureates Symposium just took place in London to brainstorm on environmental issues. Anchor Lisa Mullins gets an overview from the BBC's environment and science correspondent David Shukman.

US congressional delegates wrapped up their visits to China this week. The World's Mary Kay Magistad reports that many delegates sound hopeful about working with China on climate change initiatives.

Ningxia has been labeled China's least energy efficient province

House Speaker Nancy Pelosi is leading a US congressional delegation in China this week. High on the agenda is climate change. The World's Mary Kay Magistad examines whether Pelosi can be effective in talks with Chinese officials given her past criticism of China's human rights policies.

The World's Peter Thomson reports that Congress is considering its first major climate change bill - and the rest of the world may like what it sees.

Can Americans start thinking about cars the way European and Japanese do? Anchor Marco Werman puts that question to Clotaire Rapaille. He's a cultural anthropologist and marketing expert who worked with U.S. automakers.