social issues
Chad is a very poverty stricken country that has been torn apart by ethnic conflict and political instability. Around 80% of their population lives in poverty. Environmental problems are present due to bad drinking water. So even though the country is full of all of the resources already listed, they are still having major social issues between one another that have still yet to be solved. But it will be hard to solve the environmental issues due to such the high climate and dessert like temperatures.
Source: http://wiki.answers.com/Q/What_are_some_problems_in_chad_Africa