Tim McDonnell
-
In April, the president put $450 million on hold for Guatemala as well as Honduras and El Salvador over what he described as the failure of their governments to stem the flow of migrants to the U.S.
-
New research by the World Resources Institute finds evidence of a growing crisis in the supply of urban water.
-
A paste made from chickpeas, soy, peanuts and bananas is the result of years of work studying the bacteria that live in the human gut.
-
Knowing where rates of prevalence are highest — and lowest — can lead to new strategies for treatment and prevention. The map focuses on sub-Saharan Africa, the epicenter of the epidemic.
-
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.