 In 2017, 50 Nobel Prize winners were asked what they thought was the biggest threat to humankind. Nuclear war came in second. And the number one response? Population growth and environmental degradation. That's right, instead of being treated as separate issues, they bundled them together. It took us 125 years to get from 1 to 2 billion, but only 12 years from 7 to 8 billion. And if the weather events are any indication, the planet is not holding up. And it seems to only be getting worse. The US had 18 different billion dollar weather disasters just last year. And experts say this year won't be any better. So while population growth may not be the sole reason for climate change, I think the Nobel Prize winners were onto something.