4 ms·
What a preposterously unscientific comment. Plants need CO2, we all learn this in grade school, but it's not like plants can just infinitely scale better with m
by yareal 3y ago
What a preposterously unscientific comment. Plants need CO2, we all learn this in grade school, but it's not like plants can just infinitely scale better with more CO2.
Since 1980 we've seen a degree and a half warming, which is rapid enough to damage many ecosystems. And we've increased the ppm of co2 from 338 to 421. That's not a lot of ppm for plants to radically increase their output (we don't see 20% increases in yields, despite carbon going up). But it is devastating ecologically over the short term.
To see any sort of crop impact we'd basically have to raise co2 levels to the point that they'd cause cognitive impact on humans, disrupt weather patterns, decrease arable land, and reduce rainfall.
- _3u10 3y agoSo plants grow better in warmer and more CO2 rich environments? Aka. Greenhouse like environments? NASA agrees with me, so it’s a very scientific comment. https://www.nasa.gov/technology/nasa-study-rising-carbon-dioxide-levels-will-help-and-hurt-crops/#:~:text=Studies%20have%20shown%20that%20higher,water%20crops%20lose%20through%20transpiration https://www.nasa.gov/technology/nasa-study-rising-carbon-dio.... For most crops the saturation point will be reached at about 1,000–1,300 ppm under ideal circumstances. A lower level (800–1,000 ppm) is recommended for raising seedlings (tomatoes, cucumbers and peppers) as well as for lettuce production. https://www.ontario.ca/page/supplemental-carbon-dioxide-greenhouses https://www.ontario.ca/page/supplemental-carbon-dioxide-gree... If you followed the science instead of your feelings you’d know that global warming is a great thing for everyone on earth, biodiversity, etc. with a little foresight and an acceptable of the science we could have rainforests in London.
- Hikikomori 3y agoIs nice to live in a greenhouse? If we have rainforests in London what will be like at the equator?
- _3u10 3y agoIt was 40C last week in Asuncion. We're about 20 degrees south of the equator.
- yareal 3y agoYou didn't read the whole thing I posted. Of course plants prefer warmer and more CO2, but to get to numbers that matter we'd have to fundamentally kill whole ecosystems.
- _3u10 3y agoThey would be replaced with more diverse ecosystems. Imagine how many more species we’d have with a planet covered in forest. It’s time for Europe to scale back its farms and become more forested like Brazil.