This is in theory an issue but it's a much, much smaller one: the extra heat trapped by the CO2 over time emitted from generating electricity is much greater th

This is in theory an issue but it's a much, much smaller one: the extra heat trapped by the CO2 over time emitted from generating electricity is much greater than the heat actually generated from that electricity: the current rate of heating of the earth corresponds to about 100 times worldwide energy production And this heating would continue even if we produced no more electricity. Stopping fossil fuels is about stopping the rate of increase of heating, not stopping the heating itself (though there is an equilibrium as increasing temperature will eventually cause more heat loss to balance out the heat gain. This will still take a century or so to settle though). it's effectively a low interest but very long debt: continuing to generate electricity with fossil fuels is essentially piling on more warming over a long enough time period. Also as mentioned in other commends renewable sources like wind and hydro don't actually contribute to heating anyway. Solar does (because panels generally will absorb more radiation than most surfaces on the earth), but only by a fraction of the electricity generated.