This new section seeks to elevate the debate over pending issues beyond the surface level, and to benefit everyone from the political dabbler to the policy-maker.
Final Flight?
Arguments about individual ecological issues sometimes serve to pull attention away from the destruction of the Earth's ecosystems. The Jan-Feb issue of WorldWatch, from the institute of the same name, highlights one dimension of this crisis: the steady disappearance of hundreds of bird species.
In "Flying Into Trouble," author Howard Youth poses that disappearing birds are a measure of the degradation of larger ecosystems. About 70 percent of the world's 9,600 bird species are declining, and 100 species are threatened with extinction. The causes read like a catalog of humanity's ecological destructiveness:
Habitat destruction, particularly the destruction of wetlands and forests, takes away nesting sites.
Toxic effluents ranging from oil from the Exxon Valdez, and DDT, which is still used for malaria control in the tropics, kill birds directly or prevent their reproduction.
The introduction of non-native predators leads to decimation of populations. In many cases indigenous birds are replaced by the rats of the avian world, species such as starling and cowbirds which are able to live in disturbed or degraded environments.