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The bumper harvests due to crops growing in a greenhouse like environment will be thanks to the foresight of past leaders.
by _3u10 3y ago
The bumper harvests due to crops growing in a greenhouse like environment will be thanks to the foresight of past leaders.
- mitthrowaway2 3y agoCrops do need water, too, not just CO2.
- _3u10 3y agoDoes a warmer climate put more or less water into the atmosphere? It even rained in California this year. https://www.wired.com/story/why-rain-is-getting-fiercer-on-a-warming-planet/ https://www.wired.com/story/why-rain-is-getting-fiercer-on-a...
- yareal 3y agoMore, but less on the ground in usable quantities. Warmer air holds more water, warmer water evaporates more. Water vapor condenses into rain more heavily when warm moist air cools, resulting in heavier rains. Heavier rains are not beneficial to crops, and can damage them. Staple crops like wheat get destroyed if the rain is too hard. Many crops cannot be brought in wet, so longer rains can destroy yields as well. Rain is really complex issue for farms.
- yareal 3y agoWhat 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.