If you are moving from "emissions" to "energy usage", then electric cars also do nothing. The question is if emissions went down, not energy use. NASA says tha

If you are moving from "emissions" to "energy usage", then electric cars also do nothing. The question is if emissions went down, not energy use. NASA says that CO2 emissions were down, so does the NIH. About 5%. But that's only greenhouse gases. Air pollution was down as well. Because it turns out non-CO2 pollution in smokestacks can be absorbed by filters not present on tailpipes.