Entrepreneurship New ‘Green Rush’ As Angel Investors Feverishly Back Marijuana StartupsCarolyn M. BrownSeptember 1, 2014November 25, 2017 by Carolyn M. BrownSeptember 1, 2014November 25, 20171063 It appears that cannabis is the next great American frontier---the “green rush"---and Wealthy investors are cashing in....