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Get Ready for the Ride of Your Life

Given that it takes hundreds of thousands to millions of years for evolution to build diversity back up to pre-crash levels after major extinction episodes, increased rates of extinction are of particular concern, especially because global and regional diversity today is generally lower than it was 20,000 years ago as a result of the last planetary state shift. … Possible too are substantial losses of ecosystem services required to sustain the human population. … Although the ultimate effects of changing biodiversity and species compositions are still unknown, if critical thresholds of diminishing returns in ecosystem services were reached over large areas and at the same time global demands increased … widespread social unrest, economic instability and loss of human life could result

Whee!

How close are we to such a global state shift? One way to conceptualize it is to visualize the percentage of the Earth’s terrestrial ecosystems that have seen local state shifts:

Nature: Earth approaches a state shift

…READ COMPLETE ARTICLE…

via We’re about to push the Earth over the brink, new study finds | Grist.

 

THE SIXTH MASS EXTINCTION IS UPON US – CAN HUMANS SURVIVE?

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Will Human Beings Save Their Primate Cousins?

A Human Cause. A Human Cure?

Humans, as a species, have met unprecedented success in their brief reign as Earth’s most dominant primate–enough to wipe out other species entirely. Perhaps now the most impressive display of our cunning and ability would be to keep that from happening to our closest genetic relatives. Will Human Beings Save Their Primate Cousins? : TreeHugger.

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