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.
The World Cup football tournament kicks off in one week, and host South Africa is busy putting on the finishing touches. But not everyone is looking forward to the tournament. Authorites in cities including Cape Town are being accused of clearing the poor from the streets - to create a good impression for visiting fans. Al Jazeera's Haru Mutasa has more.