It's both carrot and stick. The average person breaks even. The green person comes out ahead. The wasteful person is in the red, and has a strong incentive t

It's both carrot and stick. The average person breaks even. The green person comes out ahead. The wasteful person is in the red, and has a strong incentive to be greener. Now, a fun wrinkle is that on average, most of us are below average. Sorry, joke. What I mean is that the median output is below the average output. That's because it's not a linear curve, but a slope where the byper-wealthy have disproportionate weight. So because the median is below the average, it's also a progressive scheme in that the majority of participants will be at break-even or better.