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So much of the US farmland is now 'fallow', only growing grass and trees. Now there is a lot of damaged soils in Africa due to overgrazing by cattle. But you take them out of production, and the natural actions of the grass growth will restore the soils.
Much of Egypt and the Sahara area was once very fertile. But the Earth changed its tilt and the climate changed, turning the area not a desert, but with rivers running beneath the desert, popping up as oasis.
Death Valley was once a shallow sea bounded by lush forests.
The point I am making is that any forecast as to 'we will be out of......' is only based on assumptions and guesstimates.
Its all the vegetarians fault they are sucking our earth dry with their insatiable appetite for grass err green things ..... /sarc
I'll file this one under 'scare tactics to make us behave'
Ooops seems some people don't get the sarcasm thing without it being noted, never mind I sorted it for you. I kinda feel sorry for those whose lives are serious 24/7.
As a freshmen in college, a physics prof warned us that there was only about 40 years of oil reserves left. That was 39 years ago. My dad was a bridge design engineer with the state DOT. I went home and asked him, gee Dad, what are we going to do with all the roads and bridges when there is no oil. He shrugged.
At San Jose state 1970 a professor solemnly warned us we would be out of oil by 1985. We had to write an essay on what we would do after oil which came with mass starvation and the end of the world.
Turn all the geezers who will be dying off in the next 30 years into fertilizer and we will be good to go.
Soylent green comes to mind
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