Carbon dioxide is good for grain production

“In Germany and the USA as well, yields per hectare of cultivated land have risen sharply since 1960. Maize in Germany by approx. 130% and for wheat in Germany by approx. 120%. This is more than doubling. Maize in the USA has jumped by approx. 110%, for wheat in the USA approx. 75%. So almost doubling.” click here

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