I'm Concerned About Population Control

When I hear about issues regarding the environment etc, I instantly think about supply and demand. I view the earth as a house that can supply its own food for X number of people. I believe we are currently well above the value of X. All the issues with pollution can be mostly resolved by having fewer people on the planet. Instead of all the rediculous carbon schemes and political nonsense, wouldn't it be better to lower the population by natural methods and 1 child policies? Less people = less resources consumed etc.