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Brassica plants and CO2

15 Jan 2025 | Science Notes

From the CO2science archive: Percent Dry Weight (Biomass) Increases in Brassica oleracea L. for 300 and 600 ppm increases in the air’s CO2 concentration. This plant family gives us cabbage, broccoli, kale and many other delightful (ahem) vegetables. And, indirectly, sauerkraut, cole slaw, cabbage rolls and many other staples with uh a distinctive flavour. From 1998 to 2020 there were 14 experiments showing an extra 300 ppm of CO2 boosted yields by 53.4% on average, and an extra 600 ppm boosted yields by 59.8% on average. So there is no danger we’ll run out of these treats, even if you were hoping we would.

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