That looks at insulation on its own. When you switch to a heat pump, it cuts the actual energy use at the home to about 1/3 of what it was when you burned gas or oil, and enables the use of non-emitting energy sources to supply the heat pump.
This means that the CO2 emissions drop, even if people decide to heat and cool their living space more.
And unfortunately, the rebound effect nullifies iits ecological impact.
That looks at insulation on its own. When you switch to a heat pump, it cuts the actual energy use at the home to about 1/3 of what it was when you burned gas or oil, and enables the use of non-emitting energy sources to supply the heat pump.
This means that the CO2 emissions drop, even if people decide to heat and cool their living space more.