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While I believe the link between human activities and global warming have been well-established, I still find the certainty of imminent runaway climate that'll
by jmyeet 3y ago
While I believe the link between human activities and global warming have been well-established, I still find the certainty of imminent runaway climate that'll turn the Earth into Venus to be counterproductive. Even if it's true, this message just numbs people.
The fact is that to a certain point the Earth has climate balancing mechanisms that we have little to no understanding about. Why do I say this? Because if it didn't, we would already be Venus. The climate on Earth has ranged from ice to the equator to being much warmer than it is even now. So why hasn't this runaway climate change happened in the last 4 billion years?
Now for a long time the standard retort has been the pace of climate change is different now. Not so. Look at Dansgaard-Oeschger ("D-O") cycles [1]:
> One of the most surprising findings was that the shifts from cold stadials to the warm interstadial intervals occurred in a matter of decades, with air temperatures over Greenland rapidly warming 8 to 15°C
This occurred multiple times over the last 100,000 years.
So rather than focus on this doom and gloom scenario, consider that climate change isgoing to kill a lot of people (through famine, flooding, areas becoming uninhabitable and the upheaval from all the resulting migration). Even then, we as a society constantly make tradeoffs of personal convenience where the cost is people dying. Sometimes a lot of people. Even apart from dying, our society cannot exist as it is without the exploitation of the Global South. We as a society have decided we're fine with people people being paid pennies to work themselves to death in death trap factories to make our lives possible.
It's not surprising that trees seed clouds. You can kind of see this in photos of a jungle canopy (eg [2]). The new part is learning how sophisticated this mechanism is. But I guess it makes sense: clouds reflect light and so it becomes a defense mechanism for trees drying out.
[1]: https://www.nature.com/scitable/knowledge/library/abrupt-climate-change-during-the-last-ice-24288097/ https://www.nature.com/scitable/knowledge/library/abrupt-cli...
[2]: https://www.canopyintheclouds.com/ https://www.canopyintheclouds.com/