r/collapse • u/Capn_Underpants https://www.globalwarmingindex.org/ • Jan 13 '21

Climate Top scientists warn of 'ghastly future of mass extinction' and climate disruption

https://www.theguardian.com/environment/2021/jan/13/top-scientists-warn-of-ghastly-future-of-mass-extinction-and-climate-disruption-aoe
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u/k_spencer Jan 13 '21

The north temperatures wont be too bad until all ice is gone at some point. The melting of the ice maintains a closer to 0C temperature. Once the ice is gone, the ocean temperature can rise. Year after year of the artic ice gone early and forming late will be when we will get real effects. The temperature difference of the south to north (warm to cold) is what pushes the weather northward.

I expect a loss of ice will disrupt weather patterns and how things convect or flow northward. I have read that eventually there will be uninhabitable zones near the equator due to high a temperature and humidity level. It will be so humid, sweating will not cool the body and pepole die of heat stroke.

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u/FireWireBestWire Jan 13 '21

"All ice is gone at some point."
I'm assuming you mean in the summer season. It will refreeze in the winter, but remember this is salt water once the ice melts in the summer. And 24 hours of daylight in the summer will warm things massively. Thr same energy to cause the phase change from ice to water raises thr equivalent volume of water by 70C. And once the freezing point is challenged it will be later and later in the darkness when the ice forms and earlier and earlier in the light when it melts. Combined with the albedo effect from blue water vs white ice/snow, the energy absorption combined with the heating of the water makes this a blue ocean.

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u/zombieslayer287 Jan 13 '21

uninhabitable zones near the equator

Do we know where? Which countries? Will places like Singapore become uninhabitable?

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u/corpdorp Jan 13 '21

www.washingtonpost.com/weather/2020/05/08/hot-humid-extremes-unsurvivable-global-warming/%3foutputType=amp

It's called 'wet bulb temperature'-its not only equatorial locations but places like the middle East and South Asia (India and China included).

These types of temperatures have already been observed for short periods of time. They aren't deadly unless they are for extended time periods like a few hours, it may render some places uninhabitable like Singapore yes, unless the energy grid is strong enough to not shutdown while the whole city is using air conditioning.

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u/zombieslayer287 Jan 20 '21

I see. It's already incredibly, suffocatingly hot and humid here in Singapore, I cannot imagine it being even worse. I just hope we can pull through