Would a carbon tax cut emissions drastically?

Washington Post Wonkblog: Lately, the White House and Congress have been talking up tax reform. And that’s given policy wonks an excuse to revisit one of their favorite environmental proposals — the carbon tax. The government would slap a fee on greenhouse-gas emissions to offset tax cuts elsewhere. It would boost the economy and address global warming. What’s not to love?
Well, set aside the fact that there aren’t yet any prominent politicians touting the idea. It’s still worth discussing on its merits. And one of the biggest questions here is whether a carbon tax would actually reduce U.S. greenhouse-gas emissions significantly. Is it a comprehensive solution to climate change? Or just a small first step?...