Representative Alexandria Ocasio-Cortez of New York suggested this weekend that it may not be ethical to have children, given the difficulties that climate change will likely cause in the years to come.

In a live stream on her Instagram, Ocasio suggested to her 2.5 million followers that the answer was not clear. “There’s scientific consensus that the lives of children are going to be very difficult. And it does lead young people to have a legitimate question: Is it OK to still have children?” she asked.