Ehrlich spelled out exactly what he meant in an interview with a liberal blog/news site called Raw Story.
“Giving people the right to have as many people, as many children that they want is, I think, a bad idea,” the Web site quoted Ehrlich as saying.
“Nobody, in my view, has the right to have 12 children or even three unless the second pregnancy is twins,” Ehrlich added.
In their Royal Society article, the Ehrlichs, both scholars at Stanford University, say serious environmental problems can only be solved and a collapse of civilization can only be avoided “with unprecedented levels of international cooperation through multiple civil and political organizations.”
"Rightful liberty is unobstructed action according to our will within limits drawn around us by the equal rights of others. I do not add 'within the limits of the law' because law is often but the tyrant's will, and always so when it violates the rights of the individual." Thomas Jefferson