As world leaders discuss poverty and climate change from the comfort of their conference halls in Japan, the real effects of those issues are being harshly felt.
In Chad, rising temperatures have brought drought, which is reducing crop yields and causing widespread malnutrition.
Yvonne Ndege travelled to Mambou and filed this report.
Interview with Newton Kanhema of the Zimbabwe Independence Assistance Network talks about Zimbabwe's Prime Minister Morgan Tsvangirai's U.S. visit.