This is probably the best climate news of the year.
From the story:
A detailed new analysis published today in the journal Joule finds that direct air capture may be practical after all. The study concludes it would cost between$94 and $232 per ton of captured carbon dioxide, if existing technologies were implemented on a commercial scale.
The society cost of carbon is probably about $250, though most studies put it closer to $100 and existing cap and trade systems put our at $10-30. (Per ton).