Americans aren’t having babies like they used to. In fact, the U.S. birthrate fell to a 32-year low last year, according to a new report from the Centers for Disease Control and Prevention.

Some young people say having kids is irresponsible due to political or climate concerns. (“In this economy?!”) This argument against having kids has been made by Rep. Alexandria Ocasio-Cortez, D-N.Y., who said it was “legitimate” to question whether having kids is a good idea when climate change will soon end us all.