After all sustainability means running the global environment - Earth Inc. - like a corporation: with depreciation amortization and maintenance accounts. In other words keeping the asset whole rather than undermining your natural capital.

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I hate movies that tell people what to think. I'm proud that Democrats thought 'Thank You For Smoking' was their film and Republicans thought it was theirs. I'm proud that pro-choice people thought 'Juno' was their film and pro-life people thought it was theirs.