Forests of mechanical trees, with layers of discs designed to ‘soak up carbon dioxide’, could be built to stave off climate change , scientists claim. Developed by Klaus Lackner, Professor of Engineering at Arizona State University, the ‘trees’ are thousands of times more efficient than the natural variety. They are tall vertical columns of discs, each about 5ft in diameter and spaced two inches apart, covered in a chemical resin and placed like a stack of vinyl records. This resin captures CO2 from the air as it blows over the surface, and once full, they drop into a barrel where the CO2 is steamed off and put into a closed environment. Currently the CO2 is simply stored – unlike real trees, which convert the gas back to oxygen. It is kept out of the environment but put to no other use, although other projects have explored re-purposing stored carbon dioxide. This could include using it to produce synthetic fuel, that can then be used in aircraft, reducing demand for oil and gas. Forests of mechanical trees, with layers of discs designed to ‘soak up carbon dioxide’, could be built to stave off climate change, scientists claim Lackner plans three large mechanical tree… Read full this story
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