Since reducing greenhouse gas emissions will not be enough to counter the effect of global warming, researchers at Harvard have been looking at a way to geoengineer a solution by injecting ozone-repairing light-reflecting aerosols in the stratosphere.
In order to keep aerosols from harming the ozone, the particles would need to neutralize sulfuric, nitric, and hydrochloric acid on their surface. To find such a particle, Keutsch turned to his handy periodic table. After eliminating the toxic elements, the finicky and rare metals, the team was left with the alkali and alkaline Earth metals, which included sodium and calcium carbonate.
“Essentially, we ended up with an antacid for the stratosphere,” said Keutsch.
Through extensive modeling of stratospheric chemistry, the team found that calcite, a constituent of limestone, could counter ozone loss by neutralizing emissions-borne acids in the atmosphere, while also reflecting light and cooling the planet.
|“It’s not something you would expect to see there and not something we’ve seen there before.”|
|Turn Waste Plastic into a Precious Resource|
|“Previously unknown plastic contamination in the tap water of cities around the world.”|
|“The release of methane from hydrate may be apocalyptic.”|
|“It’s taking orders for a real-life flying motorcycle powered by five modified jet engines.”|
|“By day, she visits morgues, observes autopsies, and studies pictures of crime scenes.”|
|What Nothing Really Means in Seinfeld|
|U.S.S. Enterprise Owner's Manual|
|CaptchaTweet: Write Tweets in Captcha Form|
|How to Avoid Jury Duty|
|“Featuring over 2,000 flags in motion to Ludwig van Beethoven.”|
|The (Very Scary) People of Public Transit|
|Fake Name Generator|
|“Without ads, how does Netflix manage to make money?”|
|There Are Plastic Islands in the Pacific Ocean You Can Walk On|
|“How easy it is for anyone who tracks our digital activities to gain insight into our personalities.”|