While those saying that ending the use of electricity would not stop global warming are correct, that's not the question. The question is IF that were true, would you be willing to make the sacrifice. It could be anything important that you give up really - it's a thought exsercise not a literal proposal. Would you be willing to radically alter your life in order to ensure the lives of subsequent generations? I'm betting that the answer is no for most people, as that is in fact exactly what humans have always done and likely always will do. We see the future as someone else's problem.