One advantage that biologists have over economists and political analysts is a clear understanding of a “climax state.”
A climax state, whether it’s a swamp filled in by peat, a redwood forest, or a planet filled with huge dinosaurs, is the most vulnerable thing in nature. It only looks stable. But a fire, or any sudden conflagration, can destroy it utterly. Mankind has, in the last thousand years, created such a climax state.
This was all described to me in the summer of 1991, when we took our family vacation around our home state of Georgia and found ourselves riding in a canoe through the Okefenokee swamp. Our guide described how the life-and-death competition among plants and animals leaves organic matter behind, which fills in the water and creates little islands, which are eventually connected as more water disappears. But these islands are highly flammable. A fire in the swamp clears them out, leaving a new swamp for creatures to compete in.
It's lack of competition that makes ecologies vulnerable.
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