> Then again, it's rather challenging to discern an ACTUAL "point of no return" from "nothing promulgated vociferously", particularly when the people INSISTING that THIS TIME the sky REALLY IS FALLING are basically the same crew that has told us the same thing about running out of water,
Which has happened on the West Coast, so that they are now buying water rights from other states and built immensely expensive aquaducts to make up for the shortage... and now moving on to what they should have done decades ago, which is construct desalinization plants
> running out of food
It isn't that we're running out of food - it is that we mis-manage it, use food for the wrong purposes (ethanol), and actually pay farmers to destroy crops rather than can or freeze it and donate it to food banks.
> running out of oil,
We were; but then the government enacted fuel economy and emissions laws, both of which forced manufacturers to find ways to make engines more efficient than they used to be, and to not dump raw fuel out the exhaust. That's why we can now buy 600+hp supercars which achieve >30mpg when driven conservatively. This is one case where government regulations did spur some major innovations. You don't have to put up with a 25hp VW beetle with no heat to get 30mpg any more - you can get turbocharged sports sedans which can achieve > 40mpg cruise on the highway, and now full-size trucks which get better than 20mpg... and it's only going to get better.
We aren't running out because we're tapping new reserves, and are now turning to shale and fracking, and are using it more efficiently, even though we now have more cars, trucks, etc. than ever before.
> running out of land
In cities and surrounding communities we are.. but the world is nowhere near overpopulated. Certain regions are overpopulated.
> , etc, etc, ad infinitum,