I think the government should issue everyone in the country with a carbon passport giving a set amount of carbon you can generate every year. Every time you do something where carbon outputs can be measured e.g. flights, pay your heating bill, buy petrol, buy a new car - a carbon allowance is deducted from your passport.
But you can also sell and buy your carbon allowance. So people who never fly or use a car can make a bit of money by selling their carbon allowance.
The government could have pledged to reduce individual carbon allowances every year.
This will reduce flights, cars, etc but through a more capitalist approach, than a central state approach.
So YANBU - yes this should happen
YABU - no a stupid idea