What do "greens" really want. A lot of us think that what they really want is government control over all aspects of people's lives. James Hansen spells out what he would like:

http://www.ibdeditorials.com/IBDArticles.aspx?id=315792676809488

I don't know what Hansen thinks about politicians, but I am certain that politicians will not return money obtained in a carbon tax to the people. Politicians know that they can put money to better uses than the people can.