Liberalism wants to return to those thrilling days of yesteryear, the Middle Ages. Of course, as the wisest people around, liberals get to be the lords of the manor and the rest of us get to be serfs. We need to serve the liberal leviathan state with ever increasing taxes. Regulation serves as the forced labor serfs owe their betters, forcing uncompensated expense on serfs to benefit the liberal state. And the liberal aristocracy has to look out for their poor serfs, who wouldn't know how to take care of themselves without guidance from their lords and masters. The liberals and their allies in the guilds, aka unions, will decide what prices are fair. The serfs can use pre-industrial energy technology in order to keep the environment clean for their liberal overlords.
Taking the analogy further, environmental regulation is a modern version of the medieval forest laws of England. Serfs were not allowed to hunt game or take wood in the forest or clear the land to cultivate it or graze domestic animals in it. The forest was reserved strictly for the king and the nobles he allowed to use it. It was considered part of the Norman Yoke imposed on the people after 1066. Penalties for forest law violations were severe. For example, poachers either had their hands cut off or were blinded. Today, liberals just confiscate your land or imprison you for environmental violations.
Read the book. It's called the "Road to Serfdom," by F. A. Hayek.
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Information on Royal Forrest Laws