Climate activists are passing laws to tax the past

New York and Vermont passed laws that will raise the price of oil, gas, electricity by taxing the past.

New York's new law demands fossil fuel companies pay $75 billion for carbon emissions dating back to the year 2000 .

Aaron Carroll : Politicians don't push a carbon tax because they know voters won't like it.

Carroll: A more honest way to punish burning of fossil fuel is to punish people for their behavior.