No, there's dozens of such tokens already but they're not going to replace Bitcoin. The "high" energy consumption is what keeps the network secure in PoW btw, it doesn't work any other way. You're going to see more "green" mining in the future and frankly the cheapest energy will always be overcapacity from renewable sources so that's where mining is going to gravitate towards even without the social pressure. Take farms in Iceland as an example.