Overpopulation

How should overpopulation be dealt with?

Natures natural adjustment mechanism is disease. But that is being interfered with. People are living longer than ever due to advancements in medicine so much so that it isn't sustainable anymore.

I know. Put mercury and formaldehyde in the flu vaccines, genetically modify the majority of foods as well as putting preservatives and other cancer inducing chemicals in them, such as aspartame and sodium nitrite, put fluoride in the water supply as well as allow pesticides & pharmaceuticals to be in the water, and spray chemicals such as barium salts and aluminum oxides all throughout the atmosphere... oh wait all that stuffs already being done. i got nuthin