Megadroughts in sub-Saharan Africa normal for the region

Global warming may intensify the age-old pattern of recurring severe droughts

		IMAGE: Winston Wheeler, a researcher at the University of Arizona, collecting tree cores from a partially submerged tropical tree at Lake Bosumtwi, Ghana. A submerged forest in the lake provides evidence... Click here for more information.

Devastating droughts worse than the infamous Sahel drought are part of the normal climate regime for sub-Saharan West Africa, according to new research.