Sunday, February 1, 2015

New Science Suggests More Land-Based Ecosystems Lost than Biosphere Can Bear

An important scientific journal article published today finds that 66% of Earth’s land area must be maintained as natural and agro-ecological ecosystems to sustain a livable environment. Yet about 50% have already been lost, threatening global biosphere collapse. In describing the paper, author Dr. Glen Barry suggests the Ebola epidemic, California drought, and Middle East revolutions indicate planetary boundaries have been exceeded.

August 5, 2014
Contact: Dr. Glen Barry
DrGlenBarry@EcoInternet.org

Citation: Barry, G. (2014), “Terrestrial ecosystem loss and biosphere collapse”, Management of Environmental Quality, Vol. 25 No. 5, pp. 542-563. Abstract

(Madison, WI) – New science finds that two-thirds of Earth’s land-based ecosystems must be protected to sustain the biosphere long-term. Yet about one-half of Earth’s natural ecosystems have already been lost. The scientific review article by Dr. Glen Barry – entitled “Terrestrial ecosystem loss and biosphere collapse” – was published today in the international journal “Management of Environmental Quality”.

The paper proposes terrestrial ecosystem loss as the tenth ecological planetary boundary (along with climate change, biodiversity loss, and nitrogen deposition which have already been exceeded, and six others nearing the limit). It is proposed that 66% of Earth’s land – 44% as intact natural ecosystems and 22% as agro-ecological buffers – must remain intact to sustain the biosphere. This would require ending industrial primary forest logging and restoring old-growth forests to reconnect fragmented landscapes and bioregions. It is necessary to remain within planetary boundaries to ensure humanity continues to be surrounded by a healthy natural environment adequate to sustain the biosphere as well as local livelihoods and well-being.

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