That’s an area twice the size of Portugal, left treeless in 2014.
The other 6.2 million tonnes are dumped or exported.
Low-cost smartphones will be available in Nigeria, Egypt, Ghana, Kenya, Ivory Coast, and Morocco.
The preliminary results from a new Ebola vaccine look very promising.
Researchers are trying to crack the holy grail of sexual health with an anti-HIV microbicide ring.
Researchers reveal an "archipelago of disconnection."
The proposal is expensive and likely ineffective.
It’s been more than a year and a half since the biggest Ebola outbreak in history began, and it’s still ongoing.
A Kentucky scientist has a plan to eradicate malaria.
A new analysis of trade networks shows how focused efforts could disrupt a global system of illegal wildlife trade.