With the legalization of cannabis in Colorado. The state has worked to figure out how to tax their new recreational pastime. Now the Federal Government has given the green light to tax collection. " The federal government has reluctantly agreed to let Colorado be the first state to collect taxes from the legal sale of recreational marijuana, but it has also made clear it doesn't agree with the move and may try to stop it, if isn't tightly controlled. Instead of keeping a low profile with the money, however, some Colorado lawmakers are want to use millions of dollars they've collected from pot sales to seek matching federal funds to keep kids of drugs." http://www.news-republic.com/Web/ArticleWeb.aspx?regionid=1&articleid=22138160

Gives a whole new meaning to a "green" economy.