Environmental hypotheses of African faunal evolution propose that major faunal speciation, extinction, and innovation events during the Pliocene-Pleistocene were mediated by changes in Africa
Climate change could turn one of Africa’s driest regions wet, according to a new study. Scientists have found evidence in computer simulations for a possible abrupt change in the Sahel, a region long characterized by aridity and political instability. In the study, just published in the journal Earth System Dynamics, the authors detected a self-amplifying mechanism that they say might kick in once the planet’s average temperature goes beyond 1.5 to 2 degrees Celsius above pre-industrial times. This threshold, defined as the global danger limit by the Paris climate agreement, could be reached before the end of this century.