Is the COP 21 climate deal one which will help save the world, or just a lot of hot air? Sloan School Of Management Professor John Sterman and UMass McCormack School Of Policy and Global Studies Dean David Cash, both just back from Paris, debate.

Congressman Michael Capuano (@mikecapuano) talks about a vote he may regret and whether he can get the over-budget Green Line extension back on track.

And a pair of unlikely Uber drivers. Boloco CEO John Pepper(@bolocoCEO) and KAYAK CEO Paul English(@englishpaulm) discuss what the ride-sharing firm can teach the rest of corporate America.