One of Socolow and Pacala’s wedges (see the introduction) involves reducing the number of miles driven by each car by 50% (they predict 2 billion cars worldwide by XXXXXXXXXXConsidering what you know...

One of Socolow and Pacala’s wedges (see the introduction) involves reducing the number of miles driven by each car by 50% (they predict 2 billion cars worldwide by 2056). Considering what you know about how people drive now, how could people reduce their driving by 50%? How would this affect their lives?