4 states in the USA had the marijuana legalized: Alaska, Oregon, Washington and Colorado. However marijuana is also legalized in California for medical purpose since 1996.
In fact, it is described as hypocrite by many people since it is really easy to get a prescription from a doctor: you just have to say your back hurts or that you have trouble sleeping…
The fact is that California faces important dryness problems and hemp cultivation still require lots of water. It does require the same amount of water than maize cultivation: from 22 liter to 60 liter per day.
Maize cultivation water cunsomption is regulated by some laws but it is not the case for marijuana cultivation which stand between legality and illegality. The water consumption rules for cultivation don’t apply for marijuana consumption.
Marijuana farmers are nearly all located in the same area called the Emerald Triangle.
Their uncontrolled water consumption resulted in the loss of a quarter of the flow of the rivers near the area.