Marijuana, also known as weed or pot, refers to the dried leaves, flowers, stems, and seeds from the hemp plant cannabis sativa, which contains the psychoactive and mind-altering chemical, delta-9-tetra-hydro-cannabinol, or THC, as well as other related compounds.

Researchers find that 42% of people surveyed in the U.S have tried marijuana at least once. In contrast, only 20% of people surveyed in the Netherlands, where weed has been legal for 38 years, reported having tried pot; in Asian countries, such as Japan and China, marijuana use is virtually “non-existent,”

Out of the estimated 22 million pounds of marijuana grown each year in the United States, nearly 80% comes from California, Tennessee, Kentucky, Hawaii, and Washington. An estimated one-third of America’s weed is grown indoors. An indoor grow module accommodating 4 plants sucks as much electricity as 29 refrigerators. In California, indoor marijuana grow modules account for about 9% of household electricity use.

In Colorado, …