Claim: "the US corn crop, at its peak, produces 40% more oxygen than the Amazon rainforest."
Fact-check: A 2014 study showed that the US Corn Belt is one of the biggest primary producers on Earth in July, but didn't show that it produces more oxygen than the Amazon - Science Feedback
Verdict: inaccurate
Organisation: Science Feedback
Author: Lambert Baraut-Guinet
Date published: 2021-09-23T07:14:34