The reason the AGW alarmists need to impose restrictions is: credit.
Remember the ozone holes? According to leftists, the holes were caused by chloroflourocarbons like refrigerant used in air conditioning. These holes would eventually destroy all life on the planet, so we were told. So the United States and most other countries banned the use of the chemicals in commercial refrigeration.
And nature obeyed. Even before the legislation too effect, the ozone holes began to shrink. By the time CFC production began to fall, the holes were pretty much back to the pre-panic sizes. (They’re growing again, though.)
The alarmists took credit for the shrinking of the holes despite the scientific facts that a) CFCs cannot reach the ozone layer in large enough volume to cause damage and b) ozone holes are caused by perfectly natural happenings.
AGW alarmists are either fraudulant liars or really stupid scientists whose degrees should be withdrawn. But they are doing nothing to save the planet.