Iain Stewart, a professor at England’s Plymouth University, is preparing to in an airtight box for 48 hours next week, using only plants for fresh oxygen. Stewart will pack 160 plants into a 130-square-foot plastic box as part of a BBC documentary series called 鈥淗ow Plants Made the World.鈥 Stewert is hoping to emphasize how critical plants are for life on earth. “I cannot think of a more powerful way of driving home to the viewer the importance of photosynthesis,” Stewart said.
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