A friend sent me this recent newspaper article–I was stunned to learn about the massive energy consumption, the huge carbon footprint, from indoor marijuana growing operations.
Since industrial-scale pot growing is now legal [regulated] in WA and CO, why not eliminate this immense unnecessary energy consumption and allow only greenhouse-grown or outdoor sun-grown marijuana?
Apparently the sun does shine predictably in Eastern WA; don’t know about CO.
From:
http://seattletimes.com/html/localnews/2020969103_potcarbonxml.html
"Marijuana growing is not a green industry.
Done mostly indoors in Washington, pot production often uses hospital-intensity lamps, air conditioning, dehumidifiers, fans and carbon-dioxide generators to stimulate plants and boost their potency.
The power-hungry crops rival data centers or server farms in intense use of electricity, according to a peer-reviewed study last year in the journal Energy Policy. One kilo, or 2.2 pounds, of pot grown indoors, the study says, leaves a carbon footprint equivalent to driving across the country seven times. Producing one joint is equivalent to leaving a light bulb on for 25 hours."
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From: http://evan-mills.com/energy-associates/Indoor.html
Original report:
Energy up in Smoke:
The Carbon Footprint of Indoor Cannabis Production
SUMMARY (updated April 18, 2012)
"What kind of facility has lighting as intense as that found in an operating room (500-times more than needed for reading), 6-times the air-change rate of a biotech laboratory and 60-times that of a home, and the electric power intensity of a datacenter?
The emergent industry of indoor Cannabis production results in prodigious energy use, costs, and greenhouse-gas pollution. Large-scale industrialized and highly energy-intensive indoor cultivation of Cannabis is driven by criminalization, pursuit of security, and the desire for greater process control and yields. The practice occurs across the United States and in many other countries.
The analysis performed in this study finds that indoor Cannabis production results in energy expenditures of $6 billion each year–6-times that of the entire U.S. pharmaceutical industry–with electricity use equivalent to that of 2 million average U.S. homes. This corresponds to 1% of national electricity consumption or 2% of that in households. The yearly greenhouse-gas pollution (carbon dioxide, CO2 ) from the electricity plus associated transportation fuels equals that of 3 million cars. Energy costs constitute a quarter of wholesale value."