Together, the ocean and earthly plants currently absorb about half of our CO2 emissions. In the ocean, excess CO2 creates more acidic conditions, leading to outcomes like coral bleaching. On land, photosynthesizers use the gas together with sunlight to make food. While plants certainly haven’t been able to keep up with our carbon spewing, they have been trying their best. Terrestrial ecosystems have been taking up more and more carbon in recent decades, as evidenced by trends like the “fertilization effect,” in which plant growth accelerates to take up the additional CO2.