On November 24 the UN climate conference in Baku, Azerbaijan, concluded with a not binding agreement to protect lives and livelihoods from the worsening impact of climate change. Unfortunately, the latter term is not interchangeable with term "global warming", although there are evidence that since 1800s human activities have been the main driver of the heating of earth's surface.
Climatic variations can be regarded as the main cause of desertification. This factor is increasingly turning our world's drylands into deserts.
Africa is the driest of the world continents with 45% of its landmass falling into dry mass.
