The Window Of Opportunity Is Growing Increasingly Short

So says Rajendra Pachauri, chair of the Intergovernmental Panel on Climate Change, if we are to take action to limit the global average temperature increase to two degrees Celsius:

Six years ago we said that emissions would have to peak by 2015 if we wanted to hold them to 2C. The cost rises the later you do it. Countries have to decide what would be the implications of inaction."

You can watch the brief video explanation here.