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Despite rapid and substantial growth in the amount of land and sea designated as protected habitat over the last four decades, the diversity of species the world over is plummeting, a new study has found.
Over 100,000 so-called "protected areas" representing some 7 million square miles of land and nearly 1 million square miles of ocean have been established since the 1960's, noted the analysis, published Thursday in the journal Marine Ecology Progress Series.
And yet, according to a widely cited index used to track planetary biodiversity, the wealth of terrestrial and marine species has seen steady decline over roughly the same period, suggesting that simply protecting swaths of land and sea -- a common conservation strategy worldwide -- is inadequate for preventing the steady disappearance of earth's creatures.
"The problem is bigger than one we can realistically solve with protected areas -- even if they work under the best conditions," said Camilo Mora, an assistant professor in the Department of Geography at the University of Hawaii at Manoa and lead author of the study. "The protected area approach is expensive and requires a lot of political and human capital," Dr. Mora continued in an email message to The Huffington Post. "Our suggestion is that we should redirect some of those resources to deal with ultimate solutions."
The steady loss of biodiversity -- defined roughly as the rich variety of living things -- can, in turn, have profound implications for human civilization, which relies on healthy, variegated ecosystems to provide a host of ecological services from water filtration and oxygen generation to food, medicine, clothing and fuel.
Originally posted by kro32
reply to post by wingsfan
Tell that to the dinosaurs