Program launched by the International Council of Scientific Unions explores atmospheric chemistry, terrestrial ecosystems and ocean circulation.

Explore a collection of links to biological Web sites about biodiversity, natural heritage and Australian biological resources.

Foundation promotes the Great Lakes coastal habitat at Long Point, an area recognized as an UNESCO biosphere.

Definition discusses life-supporting areas on earth. Offers details about essential components.

Discover the Niagara Escarpment, a biosphere reserve in Ontario, Canada. Find publications, research and travel information.