You are warm today because of fossil fuels, mainly coal

American Coal Worker “Hope all of you that are sitting at home nice and warm today realize that it's the coal industry that's keeping your houses warm as much as you wanna deny it. Not your batteries, not your solar panels. It's coal. Keeping this power plant running so that you all can enjoy your nice warm day. This right here, baby, It's not a mountain of snow. It's a mountain of coal, and you ought to be grateful for it.”