Washington Post: I’ve spent the past few weeks gathering string on a column about the best strategies for addressing climate change without a carbon price. Unfortunately for me, David Leonhardt wrote that exact column today. Fortunately for you, he did a better job with it than I would’ve. The basic story here is that for years, climate-policy wonks advocated a market-based solution to climate change: We’ll slap a price on carbon that reflects its cost to society, and as high-carbon activities and …