The world has taken an important step toward controlling climate change by agreeing to the Bali Action Plan (pdf) at the global negotiations in Indonesia earlier this month. The plan may not look like much, since it basically committed the world to more talking rather than specific actions, but I am optimistic for three reasons.

First, the world was sufficiently united that it forced the United States to end its intransigence. Second, the road map marks a sensible balance of considerations. And, third, realistic solutions are possible, which will allow the world to combine economic development and control of greenhouse gases.

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