With 2009 likely to be a crucial year for international climate change negotiations, there's increased attention on the role agriculture may play in driving up global temperatures. Cows and sheep produce a LOT of methane, and scientists are looking at new ways to cut such "emissions". The BBC's Matt McGrath reports from Dublin.

Terry Fitzpatrick reports from Cape Town on an effort to save threatened South African penguins. One conservation group is building special nesting igloos so more of the penguins will make it to adulthood.

Like Franklin Delano Roosevelt, President elect Obama is facing tough economic times, and an industrial challenge. While Roosevelt mobilized industry to fight a war, Obama pledges to mobilize to battle climate change. The World's Jason Margolis has more.

Countries in Central and Eastern Europe are taking a new look at nuclear energy. Proponents say the construction of nuclear plants could provide greater energy independence while reducing emissions of greenhouse gases. The World's Gerry Hadden reports from the Czech Republic.

Anchor Lisa Mullins speaks with scientist and writer E.O. Wilson about biodiversity and the threat which human activity poses to it. A new report from the WWF finds that about a thousand species of plants and animals have been discovered during the past decade in areas around the Mekong River in Southeast Asia.

President-elect Obama has reportedly chosen Steven Chu to be his energy secretary. Chu is a Nobel Prize-winning physicist and an expert on alternative fuels and climate change. The World's Jason Margolis reports.

The answer to today's Geo Quiz is the three "range" states of the endangered mountain gorilla -- Rwanda, Uganda and the Democratic Republic of Congo (DRC). Anchor Marco Werman speaks with Jamie Kemsey of the International Gorilla Conservation Program in Rwanda.

President-elect Obama introduced his national security team this week and climate change was mentioned prominently. The World's Jason Margolis examines how national security and the problem of global warming are linked.

Decades of clearing forests, overusing water resources, and climate change have brought desert conditions to what was once Chinese farmland. The World's Mary Kay Magistad reports from Ningxia, China.

About one in five Americans still doubt that the Earth is warming. Is this healthy skepticism or denial? The World's Jason Margolis reports on cultural denial around the globe.