87 First and foremost, CO2 is plant food. (co2coalition.org) posted 61 days ago by TinkAnon 61 days ago by TinkAnon +87 / -0 Facts Archive - CO2 Coalition 11 comments share 11 comments share save hide report block hide replies
Phytoplankton also produce around half of all the Earth's oxygen.They use sunlight and nutrients such as phosphate, nitrate and calcium to create energy and grow, taking in carbon dioxide and releasing oxygen.