HappoDammo Ratio: Happiness Generated divided by Damage Caused

For years I've heard Gifford Pinchot talk about the HappoDammo ratio, so it's nice to see him finally put it into written words:

I realized that we had had a very happy afternoon and done a tiny fraction of the environmental damage done by a typical afternoon of golf followed by a dip in the club pool. No bulldozers were used to make the Linnaea course. No trees were cut down; no sand hauled in; no pesticides, herbicides or fungicides or irrigation were used. I guessed that we had achieved at least the same level of happiness with less than one thousandth of the environmental damage.

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