LAST YEAR A team of Harvard scientists had an idea involving a large balloon and a small amount of chalk dust. They devised an experiment in which a weather balloon would release less than 2 kilograms of calcium carbonate about 12 miles above a Swedish Space Corporation facility near the arctic town of Kiruna, or possibly a tiny quantity of sulfate particles, equivalent to the amount released in a single minute by a typical commercial aircraft.
These plans were greeted with utter panic. Activist groups declared the “risks of catastrophic consequences” were too great, and there were “no acceptable reasons” for allowing the project to go forward. Experimenting with this technology, they claimed, has “the potential for extreme consequences, and stands out as dangerous, unpredictable, and unmanageable.” The Swedish government canceled the tests.
What could possibly be so terrifying about this seemingly innocuous research proposal?
The project was the first step in researching a promising strategy to counteract some of the effects of climate change: stratospheric geoengineering, specifically solar aerosol injection. By dispersing bright particles into the stratosphere where they would reflect sunlight back out into space, the theory goes, humanity might be able to generate a kind of global sunscreen and cool the warming earth. The Harvard researchers hoped to gather some data on aerosol density, particles’ effects on atmospheric chemistry, and how well they scatter light to allow climate modelers to improve the fidelity of their simulations.
Bu hikaye Reason magazine dergisinin October 2022 sayısından alınmıştır.
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Bu hikaye Reason magazine dergisinin October 2022 sayısından alınmıştır.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Giriş Yap
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