The world increasingly melts in summer heat. The impending future shows more of the same. Every year there will be even more heat than the year before. All of this is because of climate change which, in turn, is mostly the result of our continuous burning of fossil fuels. A substantial fraction of that heat input still comes from traffic involving internal-combustion-(IC)-propelled cars. There are at least two ways of attacking this problem. One is by reducing or eliminating car use by telecommuting. Fifty years ago, we reported the results on our test of telework, entitled The Telecommunications-Transportation Tradeoff^[1]. It was successful in reducing car use.

Another approach to the heat problem is by replacing IC cars with electric vehicles, EVs. In the 2020s EVs started to appear in substantial quantities.  Now let’s review the energy tradeoffs in terms of heat balances between these two options.