Your Watt-Karma is positive to the extent you preserve the energy state of your world, such that your actions do not cause energy resources such as fuels to be used.
Causing cars to stop by abusing your right to enter a crosswalk robs the cars of thousands of watts of momentum energy. The drivers will have to restore their carsâ momentum by converting gasoline into polluting gasses. You will have to restore your Watt-Karma by coming back as a pollution-consuming microbe.