It's called CO2 fertilization and it has already had a positive impact on the amount of green plant matter on the planet. https://www.nasa.gov/feature/goddard/

It's called CO2 fertilization and it has already had a positive impact on the amount of green plant matter on the planet. https://www.nasa.gov/feature/goddard/2016/carbon-dioxide-fertilization-greening-earth https://www.nasa.gov/feature/goddard/2016/carbon-dioxide-fer...