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Down to Earth

Not so green: Why cannabis has a hefty carbon footprint

As cannabis enjoys unprecedented acceptance in parts of the United States, many are asking whether this budding industry has considered its environmental impact. Growing just four marijuana plants indoors requires as much electricity as 29 refrigerators. We take a look at how legalising marijuana could help reduce its carbon footprint and whether it will ever be possible to grow weed that is truly green.

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