This is my attempt to explain air pressure in ductwork. This video is part of the heating and cooling series of training videos made to accompany my websites... This is my attempt to explain air pressure in ductwork. This video is part of the heating and cooling series of training videos made to accompany my websites... Skip navigation
Medical marijuana refers to the use of the Cannabis plant as a physician-recommended herbal therapy as well as synthetic THC and cannabinoids. So far, the medical use of cannabis is legal only in a limited number of territories, including Canada, Belgium, Australia, the Netherlands, Spain, and several U.S. states.
More info at http://www.shouselaw.com/medical-mari... In this video, medical marijuana expert and attorney at law, David Welch, explains how California's Health & Safety Code 11362.5 allows for the growing of medical marijuana, and how much cannabis it is legal and safe to grow with a medical marijuana ID card.