Conservative nutjob Bryan Fischer used to always say "CO2 is plant food", which to him meant that rising CO2 levels was only a good thing. Then again, he's a complete idiot.
Just a guess without knowing him: is he an American who affiliates as 'Republican'? Tell him that 'sun is life!' too. And let him stand in a dessert at 110F (40C) for three days without water. See if his 'GOPlogic' holds and he starts to bloom 'because sun gives life!'. 😏
