From the CO2Science Archive: In case you feel the need for more peas, specifically black-eyed peas, you are in luck. There were 24 studies from 1984 to 2019 providing evidence of the growth effects of 300 parts per million (ppm) extra CO2. The average biomass gain was 41.7% with a standard error of 5.7%. In addition there was one study that looked at a 600 ppm increase which yielded a 100% gain in biomass. You might not like peas, but they like your CO2.