Higher concentrations of CO2 are what is going to save us from the cold that’s upon us. We are in the starting throes of a new cold age and this one won’t be over very soon. I don’t expect to see the end of it in my lifetime. Cold is bad for life and bad for crops. Similar cold periods in the past have always been accompanied by bad crops and famine, We have better technology now but we have also immeasurably more mouths to feed. Higher CO2 concentrations will turn out to be a blessing rather than the curse it has never been.
So media stories of a warming climate endangering global food security are absurd. Real-world data reveal that the modern climate has been a boon to crops.