Desertification Is a Global Political Issue Because

Desertification is a global political issue because

A) local poverty and inability to change subsistence agricultural practices is being exacerbated by the poleward shift of subtropical high pressure systems due to climate change.
B) climate change means that all of the surface of Earth is subject to increased temperatures and possible shift to desert conditions.
C) desert areas are all in Africa and there are adequate environmental policies to manage them.
D) low population numbers in desert areas mean that people in other areas will have to manage the arid lands.
E) there is an excellent database of arid lands,but the problem is not well understood.