The reduction of emissions due to efficiency does not counterbalance the increase of emissions. I'll take cars as an example: today's engines are really more ef

The reduction of emissions due to efficiency does not counterbalance the increase of emissions. I'll take cars as an example: today's engines are really more efficient than engines in the 60s but cars are bigger, there are more cars per persons, there are more people. EV are a solution, but their are not 0 emissions, the construction of course emit some carbon, the delivery of cars around the world too. If they are used in china they probably will be using coal electricity. Building, delivering and powering a EV for everyone that use thermal vehicle and an increasing number of people that buy a first car won't reduce the carbon footprint. The reduction of emissions won't happen without scaling back the economy and/or the population.