3 ms·
> This "runaway" feedback loop is one of the main reasons why global warming should be avoided, in my opinion. The Earth has had a 4,000-7,000 ppm CO2 concentr
by lamontcg 3y ago
> This "runaway" feedback loop is one of the main reasons why global warming should be avoided, in my opinion.
The Earth has had a 4,000-7,000 ppm CO2 concentration in the atmosphere before and it hasn't led to Venusification. We've only gone from ~250 to ~420 ppm so far, so we're a long way off, and hopefully we'll stop before we dump another 20+ "industrial revolution units" of CO2 into the atmosphere.
Of course long before then we melt Antarctica and the Earth's climate looks a lot different, but it won't be Venus.
- c22 3y agoIn 1860 atmospheric co2 was at 288 ppm [0]. By 1960 it was around 317 ppm [1]. A difference of 29 ppm which works out to about 226.78 gigatons of co2 [2]. In 2022 we emitted 37.5 gigatons of co2, up 0.9% from 2021 [3]. We are currently emitting an "industrial revolution" of co2 every ~6 years. [0]: https://www.chicagotribune.com/news/ct-xpm-2000-05-23-0005230241-story.html https://www.chicagotribune.com/news/ct-xpm-2000-05-23-000523... [1]: https://www.statista.com/statistics/1091926/atmospheric-concentration-of-co2-historic/ https://www.statista.com/statistics/1091926/atmospheric-conc... [2]: https://www.quora.com/How-many-grams-of-CO2-are-in-the-atmosphere-The-number-of-moles-of-air-are-1-8194-x-10-20-10-to-the-20th-power-PPM-is-315-97 https://www.quora.com/How-many-grams-of-CO2-are-in-the-atmos... [3] https://www.statista.com/statistics/276629/global-co2-emissions/ https://www.statista.com/statistics/276629/global-co2-emissi...