[MCN] Heat beyond human limits: A "deadly threshold" identifed

[Lance Olsen]

Nature Climate Change 19 June 2017
Global risk of deadly heat <http://www.nature.com/doifinder/10.1038/nclimate3322>
Camilo Mora et al.
https://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate3322.html <https://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate3322.html>

Excerpt from the abstract [bold added]

"Around 30% of the world’s population is currently exposed to climatic conditions exceeding this deadly threshold for at least 20 days a year. By 2100, this percentage is projected to increase to ~48% under a scenario with drastic reductions of greenhouse gas emissions and ~74% under a scenario of growing emissions. An increasing threat to human life from excess heat now seems almost inevitable, but will be greatly aggravated if greenhouse gases are not considerably reduced."
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“How does one justify trying to cope with what may be intractable problems? 
The very nature of the question belies its origins in the assumption of science 
that one has to believe that all problems are solvable.”

Seymour Sarason. The Nature of Problem Solving in Social Action. 
American Psychologist. April, 1978

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" ‘Triage’ is a dirty word in some conservation circles, but like many dirty words, 
it describes something common. Whether they admit it or not, conservationists 
have long had to make decisions about what to save.

"As more and more admit it, open discussion about how the decisions are best made 
— by concentrating on particular species, or particular places, or absolute costs, or any 
other criterion — becomes possible. Whichever criteria come into play, one thing 
remains constant. The decisions have to be made quickly."

Emma Marris, "What To Let Go."
NATURE November 8, 2007

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