First they dig it out of the ground with heavy equipment that runs on diesel fuel, which requires it's own polluting chain of custody to acquire. You're probably going to destroy the ground you dig it out of as well, so there's that. Then we load it on to giant coal drags pulled by diesel smoke belching locomotives, across creosote covered wooden ties and rusting steel bridges. We might send it to a depot where it's moved by more diesel-consuming equipment, or we could just take it to the power plant where it's thrown into giant boilers that burn it to heat water, all the while belching out smoke. The steam generated is cooled back to water after the generation cycle is done, and all that hot water is either thrown back into the river it was taken from or belched into the air as great clouds of vapor. A whole fleet of maintenance vehicles (consuming hydrocarbons) keep the system running so the electric truck owner can feel good about how environmentally friendly he is, totally ignoring the horrible environmental damage that's caused by getting the lithium out of the ground to make the batteries for his plastic toy truck.