There has been great concern that with increases in the number of places that allow legal marijuana use, incidents of people driving while under the influence of marijuana would see a corresponding increase. A study in New Zealand found that people who frequently used marijuana, especially before driving, were more likely to[Read More…]
Tag: u.s forest service
Illicit Water Use
Marijuana is a water-intensive crop to grow, using approximately six gallons of water per plant per day. Grow sites often illegally divert water from rivers and streams, and lay miles of illegal irrigation tubes. At just one illegal grow in northern California, law enforcement officials found a set of seven sites with a total[Read More…]
Deforestation and Erosion
Many people illegally growing marijuana place their grow sites in forests, particularly in California. These areas, often public lands, are difficult to reach and hard for law enforcement to monitor, making them good for concealing the growers’ activities. But to plant crops in these remote, often hilly or mountainous, locations,[Read More…]
Hash Oil Explosions
Particularly in states that have legalized recreational marijuana use, there has been an increase in production of marijuana extract, usually called hash oil, in the past few years, causing concern among law enforcement personnel, as discussed in a recent piece by USA Today and one from its affiliate, Statesman Journal. Hash oil is made by pouring a[Read More…]
THC levels in edible marijuana products have become a significant hazard of marijuana use, particularly for new users. Over time, the average level of THC in marijuana has increased (see article). On top of this, people have become more adept at distilling more concentrated THC out of the plant, particularly by[Read More…]
High Energy Use
Growing marijuana indoors requires very large energy inputs. A 2012 study estimated that marijuana growth in the United States accounts for one percent of the country’s energy use; that’s $6,000,000,000 worth of energy!
Marijuana production can have several adverse effects on animal habitats and populations. Illegal growers often use pesticides, insecticides, and rodenticides, which can kill more than just the intended targets.