"Even at today's concentration of 400 ppm plants are relatively starved for nutrition. The optimum level of CO2 for plant growth is about 5 times higher. CO2 is the giver of life. We should celebrate CO2 rather than denigrate it as is the fashion today."
This from Patrick Moore one of the founders of Greenpeace and the only one of them with a formal education in science.
greta, page-17
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