Sub-Saharan Africa continues to register high levels of HIV prevalence.
"Abnormal" weather is becoming the norm in many parts of the world. Average temperatures, precipitation and wind patterns are changing, and non-climate factors -primarily the accumulation of greenhouse gases produced from human activities - are driving this change.
If you live in São Tomé, a good investment in your health is to plant a po-sabom tree (Dracaena aroborea) in your backyard.
Human migration is a matter of global concern. Flows of migrants and refugees influence and change the social, economic and political dynamics of their destinations -- and the places they have left behind.