Much of the increase in crop yields is due to more carbon dioxide in the air. Plants need CO2 in the air to thrive and grow. Add more CO2 and you get more grain per acre, larger fruits and vegetables, stronger and taller trees, more grasslands, shrinking deserts. It's a positive thing in every way, and it has no negative component. In fact, we could use still higher concentrations of CO2 in the air. All this is happening, while the morons on the left demonize "carbon." What utter useless cocks they all are. They not only get everything wrong, they get everything exactly opposite to the truth.