Greenhouse gases may spell wet future for Africa
Historic damp periods linked to boosts in planet-warming emissions
![the Serengeti in Tanzania](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/12/bm_8874007222_c68e188c4a_o.jpg?fit=860%2C460&ssl=1)
STORMY FORECAST By studying a wet period in Africa's distant past, researchers have found that current increases in atmospheric greenhouse gases may spell a rainy future for certain parts of the continent, such as northern Tanzania (shown).
Colin J. McMechan/FLICKR (CC BY-SA 2.0)