Can cannabis help combat climate change?

The institution's founder, Bob Dobson, explained to report from the British newspaper Daily Mail (*) that hemp captures up to 16 tons of greenhouse gases annually, while trees absorb around 6 tons. He exemplified that an acre of cannabis can store up to 3 tons of carbon, removing more than 7 tons from the atmosphere.

The Daily Mail highlights that hemp, or industrial hemp, is a variety of the plant Cannabis Sativa, but contains deficient levels of the psychoactive compound tetrahydrocannabinol (THC) compared to marijuana, which is another variety. The plant is considered 'nature's purifier', removing toxins from the air and permanently trapping them in its fibers.

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Hemp absorbs CO2 from the air as it grows, making it a negative crop carbon. Furthermore, it grows incredibly quickly, reaching maturity in just 4 months.

Researchers also revealed that plants cannabis they absorb carcinogenic heavy metals such as lead, mercury and cadmium from soils, which is suitable for crops used as food – but dangerous for people who eat the plants.

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