by Memphis Barker, The Independent:
Fake volcanoes, giant space mirrors, oceans of iron filings… One of these ideas might save our planet from the worst effects of global warming – or destroy it. Memphis Barker reports on the rise of geoengineering – and the rift it has opened in the scientific community…
Two years ago this month, in a disused Norfolk airfield, a small group of scientists were preparing to undertake one of the more controversial experiments in British scientific history. What little equipment it needed – a B&Q pressure washer, 1km of hydraulic hose and an 8m air balloon – had been bought or loaned. A truck was ready. Once in the air, the dirigible balloon would spray 120 litres of fine water droplets into the East Anglia sky, a miniaturised test for a much larger system that would eventually pump out chemical particles to reflect sunlight and, so the scientists calculated, cool the planet. It was to be a momentous day.
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