Capping CO2 comes at an energy cost. If it were true that CO2 had no impact on the environment, we would be putting an undue burden on developing countries and low-income people in general. Even if the richer countries subsidize the poorer countries, that&#x27;s money that could be spent towards other research.<p>Nearly every person who argues against global warming research is doing it because of this. They think we are making sacrifices for no purpose. If eliminating CO2 emissions came at no cost, there would be almost no debate at all because the majority of the people who didn&#x27;t believe in the effects of CO2 wouldn&#x27;t care.