Tim McDonnell
-
The largest-ever study of stroke patients in Africa reveals a high rate of a particularly risky type of brain incident. What's the problem? And what's the solution?
-
The tubers are essential to the country's economy and culture, but their quality keeps declining. Now, researchers have found a way to mass produce good seed yams — and it could save the industry.
-
Coffee is Uganda's most valuable industry, but climate change could cut production by half by 2050. Small farmers there are already feeling the effects, as they document in these photos.