Rice is the most important source of nourishment for more than 3 billion people - about half of the world's population. But rice production is not only threatened by the effects of climate change - it contributes to climate change as well. The process of farming rice produces huge amounts of greenhouse gases.That's why the renowned International Rice Research Institute in the Philippines is searching for ways to bring rice production into the 21st century.
We also pay a visit to German researcher Reiner Wassman, who is trying to make rice farming more environmentally-friendly. Rice fields are constantly flooded, which releases harmful methane gases into the atmosphere. But new methods of farming that cut down on water and increase yield are starting to show the first signs of success.
