President-Elect Biden ran as a moderate Democrat, but he also campaigned on an aggressive climate platform. How much of that agenda he can pursue could rest on who controls the US Senate, pending results of two runoff elections in Georgia. 

We unpack what's coming next with Jody Freeman, law professor and director of the Environmental and Energy Law Program at Harvard Law School.

Before that she worked in the Obama White House as counselor for climate and energy where she was the architect of the fuel-efficiency regulations for cars, which were later rolled back under President Trump.