Green liberalism
Green Liberalism is a term used to refer to liberals who have incorporated green concerns into their ideology.In Green Liberalism, the planet is highly valued; it is viewed as being important that the planet be passed down to the next generation unharmed. Green Liberalism accepts that the natural world is a system in a state of flux, and does not seek to conserve the natural world as it is. It does however, seek to minimise the damage by the human species on the natural world, and to aid regeneration of damaged areas.
classical liberalism opposes any regulation by the state, but Green Liberalism allows environmental regulation. The argument being "We do not own the planet, we borrow it from our children. Therefore, the planet is not ours to do with as we please, rather it is our responsibility to protect it from harm."
Conrad Russell, a member of the Liberal Democrat (UK) party, dedicated a chapter of his book "The intelligent person's guide to liberalism" to the subject of Green Liberalism.