Slideshow: Projects and partners worldwide

Vietnam: Rice farmers cutting carbon pollution In the Mekong Delta, we have partnered with rice farmers to reduce emissions of methane and carbon dioxide. Our project will also increase crop yield and decrease the use of water, fertilizer and pesticides. Guenter Guni/istockphoto.com

India: Cleaner burning cook stoves We’re helping thousands of rural families in India and Bangladesh cut pollution by replacing traditional wood-burning fires (shown here) with clean-burning stoves. The new stoves are powered by bio-digesters that use bacteria to turn manure into fuel. Read more » Christopher Pillitz/Getty Images

Mexico and Brazil: A pact to save the rainforest Deforestation contributes to about 15% of global carbon pollution. To save threatened rainforests and cut pollution, we helped broker a landmark agreement between California, the Brazilian state of Acre and the Mexican state of Chiapas. Read more » Photo: Minden Photos/Superstock

China: Greener commutes Our partnership to reduce driving, launched during the Beijing Olympics, has grown to more than 30 cities. Projects range from company programs to the world’s first low-carbon transit card, where half the fare goes to emissions-reduction projects. Read more » imaginechina/Corbis

Island nations: Advocacy and visibility We have joined with island states like the Maldives to draw attention to the grave risks they face from global warming and sea level rise. As a key player in U.N. climate talks, we’re also negotiating to help island nations transition to clean energy technologies. Photo: Peter Essick/Aurora Photos

Brazil: Keeping rainforests standing Working with local allies, we are helping create the world’s largest continuous tropical forest corridor in Brazil’s Xingu River Basin. Indigenous communities are now stewards of 20% of the Amazon, slowing deforestation and protecting biodiversity. Read more » Owen Franken/Corbis