Sarah Conly argues that we do not have the right to have more than one child. If recent increases in global population continue, we will reduce the welfare of future generations to unacceptable levels. We do no't have a right to impose on others in this way. While voluntary efforts to restrain population growth are preferable and may be enough, government regulations against having more than one child can be justified if they are necessary. Of course, government regulations have to be consistent with rights that we do hold, but Conly argues that since we do not have a right to have more than one child, government regulations are one of the methods we might use to reduce the fertility rate until we reach a sustainable population.