A look at Canada's Boreal Forest ecosystem. One of the largest ecosystems in the world, it provides abundant fresh water for North America and is home to many species of wildlife, for example, wolves and caribou. There is also discussion...

What is air pollution? Discover the sources of air pollution, the effect of air pollution on health, the effects on the environment, and how you can help.

The ALS Association is the only national not-for-profit health organization dedicated solely to the fight against ALS. This website guides you through information regarding ALS (Lou Gehrig's Disease), discusses the global, cutting-edge...

This video by Yoni Goodman and the Global Health Media Project tells the story of cholera in one village. [4:29]