Could humanity survive in a world 6c warmer (pre industrial) as is projected if we don't act ?
- 1 month agoBest answer
I don't think so, maybe a few thousand folk might be able to ride it out in the Antarctica but even thats unlikely, this is from a study I found:
"BETWEEN FIVE AND SIX DEGREES OF WARMING "
"Although warming on this scale lies within the IPCC’s officially endorsed range of 21st-century possibilities, climate models have little to say about what Lynas, echoing Dante, describes as “the Sixth Circle of Hell”. To see the most recent climatic lookalike, we have to turn the geological clock back between 144m and 65m years, to the Cretaceous, which ended with the extinction of the dinosaurs. There was an even closer fit at the end of the Permian, 251m years ago, when global temperatures rose by – yes – six degrees, and 95% of species were wiped out."
"That episode was the worst ever endured by life on Earth, the closest the planet has come to ending up a dead and desolate rock in space.” On land, the only winners were fungi that flourished on dying trees and shrubs. At sea there were only losers. Warm water is a killer. Less oxygen can dissolve, so conditions become stagnant and anoxic. Oxygen-breathing water-dwellers – all the higher forms of life from plankton to sharks – face suffocation. Warm water also expands, and sea levels rose by 20 metres.” The resulting “super-hurricanes” hitting the coasts would have triggered flash floods that no living thing could have survived."
- 1 month ago
It is MORE LIKELY that the globe experiences a decade or two of GLOBAL COOLING. If you actually study climate, you'd realize that 6 degrees is unlikely. IPCC doesn't even say that. More likely is what has always happened, +2 degrees, then -2 degrees. Repeat. That is what actually happens. The Little Ice Age (LIA) ended in mid-1800s. It's been warming since then. A natural occurrence. Now we're entering the same situation that caused the LIA, low Solar energy reaching the Earth. Expect cooling. By some measures, it's already here. Cooling is bad for crops, bad for people. It brings on civil strife, famines, warfare. The warming of the past several decades has been beneficial.
- it is iLv 41 month ago
Yes- minus a few billion. You would be living more like an Afrikan then you do now.
- 1 month ago
Six degrees? False premise.
Man is not more powerful than nature and the sun. Stop hand wringing and live your life.
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- GraceLv 41 month ago
That is why some who care about the environment are recycling and buying used things when possible and refurbishing them. I have been doing this lots for over three decades...
- antarcticiceLv 71 month ago
As in most disasters it is the old, sick and poor that suffer first, an average rise in global temp does not mean just 6c, that’s just the average. As was seen in the UK this past summer you get heatwave we’ll above average.
Semi arid zones currently produce a lot of the worlds food thanks to dams and irrigation warm those zones up and they go fully arid, then dams are not of much use. Humanity will survive this although there might be quite a few less of us. A 6c warmer world would be one without Arctic sea ice and one with rapidly shrinking glacial ice, mountain glaciers would be gone and they supply billions of people with water. Current estimates of 1m of sea level rise are based on containing temp rise to ~2c, at 6c the rise would be quite a bit more.
- samLv 61 month ago
Survive with many millions dead. Most coastal cies will be under water
- Anonymous1 month ago
lol if we don't act. Is something wrong with you?
- CowboyLv 61 month ago
Some might, most won't.
- MikeLv 71 month ago
The MWP was 4 degrees warmer , people thrived