Re food shortages in Africa caused by environmental or political reasons?

For the project/essay

as for the examination, but note also
a sound information base, constructed from thorough literature searching, is expected
a sound structure is expected, with a logical arrangement of material
clear, concise and technically competent writing (and referencing) is expected (remember to use spell checker and grammar checker)
Essay Writing in Windows NT Common Applications/ Training Software is a convenient source of information on all aspects of writing, including details such as the use of the apostrophe as well as broader issues such as organisation.