People will be running around like headless chickens making pretentious speeches telling us that we should take a day to plough an acre of land; under a tarpaulin in the pouring rain. Only eat vegetables to stop methane gas from farm animals, of course, people would then be producing more methane?
Under the action these people propose, food production and transport would decline leading to widespread poverty, famine and starvation, so the population would fall, except, of course, amongst the rich and powerful who will implement the measures and control the armed forces to ensure they are followed, worldwide dictatorship.
We have a big producer of carbon dioxide in the sky, it's called the sun. It has been shown that the earth's weather has always been in flux, and now, the scientific methods of the weather alarmists have been brought into question.
The problem isn't as easy or clear cut as these people would have us believe.