From the CO2Science archive: This staple of summer picnics, technically known as Cucumis melo L., has been shown to love CO2. CO2Science reports on 4 experiments between 1990 and 2020 that exposed it to extra CO2. An extra 300 ppm yielded an average gain of 8.3% in biomass, an extra 600 ppm yielded a gain of 13.7% and an extra 900 ppm yielded a gain of 34.3%. So next summer if you think the cantaloupes in the grocery store look a bit bigger and healthier than before, now you know why.