Humans have long sought to geoengineer the Earth’s environment. Tim Flannery outlines a few of the wildest ideas from the 20th century An increasing number of scientists think we have let the climate crisis fester for so long that our only hope to stave off ever-intensifying catastrophes is to use technological interventions. Cloud brightening, injecting sulphur into the atmosphere and the use of tiny mirrors in space – all of which might reduce the amount of sunlight reaching Earth’s surface – are among the concepts being promoted by entrepreneurs and governments alike. Geoengineering, they argue, is now inevitable. Ever since the God of the Old Testament granted our species dominion over the Earth, ideas of remaking the world to better suit us have been a dominant thread in human thinking. We have for centuries toyed with grand ambitions to alter and re-form the climate and environment, many of which – in retrospect – seem doomed or absurd. Sign up for a weekly email featuring our be
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Bomb the Arctic, dam the Mediterranean and build a second moon: five outlandish plans to remodel our climate
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