> enforcing worldwide policy for CO2 reduction

This is what things like Kyoto were intended to be.

> Machinegun the boats

This is the kind of thing we executed Nazis for at Nuremberg. It's called a crime against humanity for good reason.

To not tackle population increases is to acquiesce in the suffering of greater numbers of humans as global warming really kicks in. Population control is the kind thing to do.

Population increase is already tackling itself except for the Sub-Saharan Africa where people produce almost no CO2 anyway coz they are dirt poor. It is safe to say that increased consumption decreases reproduction rate by itself simply because people have other things to do.