The growing societal acceptance of cannabis in the U.S. has sparked what some call a "green rush" of people trying to cash in on what is already a multi-billion-dollar business. And as the marijuana industry comes out of the shadows, its producers, consumers and advocates are pushing for more transparency – both about cannabis' alleged medical benefits and its environmental impacts.
Nearly a year after Colorado and Washington State voted to become the first states to legalize recreational marijuana, the detailed rules governing how pot will be grown, sold and taxed are finally complete. And as the two states implement their different approaches, the whole world is watching. This week, the American Civil Liberties Union (ACLU) announced a new panel, headed by California Lieut. Governor Gavin Newsom, to draft a possible 2016 ballot measure to legalize pot in California.