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The modern era of humans roughly coincides with Earth's coldest period over the last 485M years: https://www.science.org/doi/10.1126/science.adk3705 https://www
by onlyrealcuzzo 2y ago
The modern era of humans roughly coincides with Earth's coldest period over the last 485M years: https://www.science.org/doi/10.1126/science.adk3705 https://www.science.org/doi/10.1126/science.adk3705
Even some of the worst predictions for where temperatures are headed before we get close to Net Zero emissions don't put us above historical averages.
To be clear, if the worst predictions come to light, that will be bad for people. But the planet will be fine.
I doubt some extra solar radiation will turn the Earth into Venus or Mars.
- deleted 2y ago[deleted]
- Aachen 2y agoAfaik Earth turning into Mars would require shedding the magnetic field such that our atmosphere can be stripped by solar radiation Venus seems more in reach but I don't know the specifics. Will continue researching in my evil scientist retreat
- worldsayshi 2y agoVenus atmosphere has a very different composition.
- Aachen 2y agoAm aware, but it seems to have come from a place that was more similar to earth than Mars' https://www.smithsonianmag.com/smart-news/venus-could-have-been-habitable-billions-years-180973203/ https://www.smithsonianmag.com/smart-news/venus-could-have-b... and other articles make that case. I don't know if that's still current information (heard it a while ago and just looked up a random article as reference now, so this might be akin to cherry picking or confirmation bias), I'm not an expert on this particular topic, but that claim is what I had in mind when saying Venus' conditions are more attainable for earth Blurb from that article > Venus was downright Earth-like for 2 to 3 billion years and didn't turn into the violent no-man's land we know today until 700 million years ago.
- withinboredom 2y agoI used to joke that life actually started on Venus and we were the backup planet.