Effect.  10% drop in gas mileage from 10% ethanol in gasoline.  An extra gallon of fuel bought and burned, to go the same miles from every 10 gallon fillup.  One gallon of ethanol takes at least one gallon of gas and.or diesel to produce.

A gazillion dollars wasted, more GHGs, 10% more money to drive to work, school,shopping whatever.

The alternative?  That same gazillion dollars spent on government vehicle fleet conversion and tax incentives for.

Electric cars with a 40 mile range (with backup generator).  US manufacturing base restored, the EVs use 10% of the gas of regular cars, it costs less than a third of what it now costs to drive to school, work, shopping.

The two kinds of environmentalists?  The ethanol people or the EV people?  Hehey.

Start dividing it on those lines instead.  Nuke people or wind and solar people?   Central power production, or distributed power generation and storage.

RFK jr or Lester Brown?   I guess we in the green movement need our own primary.