The carbon footprint of indoor Cannabis production

► The emergent industry of indoor Cannabis production utilizes highly energy intensive processes and is highly inefficient. ► In the United States, this represents an annual energy expenditure of $6 billion. ► One kg of final product is associated with emissions of 4600 kg of CO2 emissions to the atmosphere. ► Aggregate U.S. emissions are equivalent those of 3 million cars. ► Energy analysts and policymakers have not previously addressed this use of energy.