This is so 1970s. Every single industrial country is near or below replacement birth rates, many far below.
The only way to stop the growth of population in the next 40 years or so in these countries is to kill a bunch of people.
"Mr. Seager is so seventies in combining his blame-America-first ideology with warnings of looming environmental disaster. The United States is 130th on the world fertility ranking list, already at a rate of 2.09 children-per-woman, meaning that our population has already stabilized (when every couple produces two kids, total population doesn’t grow)."
"The most fertile European country is Albania at 132 (2.03 children-per-woman). The first West European country in fertility ranking is Iceland at 141 (1.92 children-per-woman). And to find a continental West European country on the fertility list, we have to drop down to France at 154 (1.84 children-per-woman, already helping advance Mr. Seager’s goals, by beginning to depopulate itself). Given these numbers, if Mr. Seager is serious about what he says, he needs to focus his efforts on the Third World and tell them they can’t be having so many kids, because they are causing global warming. "
"(Related question: Anyone care to speculate on whether it’s a positive sign, or a sign of the apocalypse that Afghanistan is now 5th in fertility, at 6.69 children-per-woman?)"