Study measures marijuana's carbon footprint—and it's high

Growing marijuana in large, climate controlled warehouses is good for production but has a massive carbon footprint.

Photo by Sharon McCutcheon from Pexels
  • A new study finds that the kilo of marijuana can come with a carbon footprint of up to five tonnes.
  • The exact value differs by state, with climate and the availability of clean energy being important factors.
  • Alternatives to growing the plant in warehouses can drastically reduce emissions.
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