F1's looming crisis

What's sad is that I don't think people understand how bad lithium ion batteries are in terms of "being green". I remember reading about the fact that a Tesla only becomes better for the environment after like 8 years of use compared to a internal combustion engine. But the problem is that the battery will need to be replaced by that time. And not only that, but most of the energy that is used to charge an electric car comes from fossil fuels, so it's only better for the environment if it is only recharged on renewable resources. I like the fact that we are rapidly developing the technology for electric cars for a greener future, but I think that it's foolish to ban the ICE because of how efficient we have made it. I'm sure that governing bodies are aware of this, but they must think that it's better to make the bans so the technology develops *really* quickly.