what is the government doing about overpopulation?

Reinstating the death penalty.

Which government? China had a one-child policy for many decades.

eugenics

India is the biggest concern. They are going to all starve to death if they don't do something.

Which government in which country?

They are giving Planned Parenthood millions of dollars.

Bringing in more africans to put on welfare.

What country are you from

Nothing, nothing needs to be done.

Heart disease and diabetes is epidemic. By 2035 75% of adults will be obese. This generation will be the first to not live longer than the one before it. The population in western nations is declining. Be patient.

I don't know which country's government you are talking about, but overall not much.