00:00People may ask themselves, how can we use more planets than there are?
00:28It's like spending more money than we earn.
00:31We can use resources more rapidly than they regenerate.
00:34For example, we are now putting more CO2 into the atmosphere than can be sequestered.
00:39We can cut trees more rapidly than they regrow.
01:09For example, we can cut trees more rapidly than they regrow.
01:39For example, we can cut trees more rapidly than they regrow.
02:09Now we can do that for some time, but not forever.
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