A new side effect to global warming in Africa — the greening of the Sahara desert. Tom Nelson has the link:

National Geographic, James Owen: Sahara Desert Greening Due to Climate Change?
Desertification, drought, and despair — that’s what global warming has in store for much of Africa. Or so we hear. Emerging evidence is painting a very different scenario, one in which rising temperatures could benefit millions of Africans in the driest parts of the continent. Scientists are now seeing signals that the Sahara desert and surrounding regions are greening due to increasing rainfall.If sustained, these rains could revitalize drought-ravaged regions, reclaiming them for farming communities.