Humanity Is Already 44 Percent Doomed - Paper

A new paper says that human civilization has crossed four of nine so-called planetary boundaries as the result of human activity that put humanity in a "safe operating space." The four that are already beyond that point-of-no-return are climate change, the loss of biosphere integrity, land-system change, and altered biogeochemical cycles like phosphorus and nitrogen runoff. That makes us 44 percent of the way on the path to doom.It should be a wake-up call to policymakers that "we're running up to and beyond the biophysical boundaries that enable human civilization as we know it to exist," says co-author Steve Carpenter, director of the University of Wisconsin-Madison Center for Limnology.  read more

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