This seems like an important milestone toward treating emission credits as bankable property rights. Two questions, why didn't this deal get more play in the press and why is Mitsubishi borrowing money? (Because they can. I know, old joke. Seriously, what is the effective cost of capital here?).
From EnergyDaily: http://www.energy-daily.com/reports/Mitsubishi_Heavy_To_Borrow_Money_Using_CO2_Credits_999.html