Quote:
Originally Posted by kev67
Which is why I put in that caveat. My feeling is that whatever the 'safe' level of CO2 in the atmosphere is, say 350ppm, the world response will be too little, too late to meet it.
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Certainly it's too late for 350ppm.
Quote:
Originally Posted by kev67
Real urgency to tackle the problem won't happen until people see climate change really taking hold, by which time it would be too late. If that happens then a big technological fix will be on the cards.
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This might not be as far away as one might hope. The first tipping point representing
"dangerous anthropogenic interference with the climate system", [and] carrying high-casualty and high-cost impacts." (
Tipping the scales) is the loss of the Arctic Summer sea ice
... Perhaps this year:
It seems unthinkable, but for the first time in human history, ice is on course to disappear entirely from the North Pole this year. (
No ice at the North Pole)