this post was submitted on 02 Dec 2023
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One major problem with flooded rice fields is that it promotes growth of anaerobic bacteria that cause quite significant methane emission. Of course you can't forbid people from growing rice as a lot of people depends on it, but it's definitely a problem.
Apparently integrating fish like this reduces the methane emissions:
https://www.wired.com/story/tiny-hungry-fish-fix-rice-global-warming-problem/