(We also came very close to running "out of" ozone over a large part of our planet. The idea that a resource is "done" only when it's been utterly depleted isn't how it goes in practice.)

The denial is strong in these ones...

"Hey, it worked in the past, when the population was 1/100th to 1/4th (start of 20th century), industrial production and consumption was 1/10000th was it is, demand for most modern necessary resources zero, and so on, so should work in millenia to come. And if not we can always pull a pivot to an alternative resource out of our magic hats, because 'science'".