Thanks for the links, but watching this clip it's more like a comedy, two discredited clowns suddenly playing drama queens, Birol (peakoil) & Monbiot (9/11) ..

In fact that gives credit to the early critics/researchers even more and we should applaud them.

Thanks, short.

That is worrying.

I hadn't heard that approach to depletion rates before.

But shouldn't that--subtracting a fixed amount every year--yield not a depletion curve but a straight line to zero?

Sorry to be so hopelessly and permanently confused. Should have taken more math, I guess. (I did make it through intro calc in college, but I've forgotten most of that.)