The answer to today's geo quiz is New Zealand's North Island, where conservationists struggled to save two pygmy sperm whales stranded on the island's eastern coast. The World's David Leveille has the story.
Today's Geo Quiz asked you to name one of Norway's northernmost towns, on the island of Spitsbergen in the Arctic Ocean. The answer is Longyearbyen. Residents there have just emerged from their long "polar
night" when the sun never rises for months. Anchor Marco Werman finds out more from Irene Gustafson, a tourism specialist in the Norwegian town.
Living on Earth's Ashley Ahearn heads out to the Montana range to take a look at how ranchers are using their land to absorb the greenhouse gas carbon dioxide, and make some money on the carbon offset market in the process.
Some say that limiting industry's greenhouse emissions isn't enough; individuals need to be put on a cap and trade plan, too. Guest: Richard Starkey, a researcher with the Tyndall Centre for Climate Change Research in the UK, about a number of personal CO2 trading schemes, and the challenges to putting limits on people's carbon emissions.
The monarch butterflies of central Mexico are beginning their annual northern migration but this year, there may be a decline in the number making the trip, as Anchor Marco Werman speaks with butterfly expert Lincoln Brower