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"That means it can produce up to date forecasts with a fraction of the computational cost and carbon dioxide."

In contrast, the atmosphere on Mars is roughly 2% as dense as Earth’s, and its composition is dominated by carbon dioxide.

Analysing gases in the air flowing around the marsh - over the course of a year - revealed how plants there "breathe in" more carbon dioxide in the summer than they release in winter.

The plant, which it claims would be the largest to date anywhere, would make e-methanol from captured carbon dioxide and green hydrogen produced on site using renewable energy.

The White House's Make America Healthy Again report published earlier this month also spotlighted titanium dioxide and other food additives as a key concern.