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If Left Unregulated, Rocket Launches Could Result In More Ozone Destruction

by Aruna on April 03, 2009 at 11:19 AM Environmental Health

Research says that the global market for rocket launches may require more stringent regulation in order to prevent significant damage to Earth's stratospheric ozone layer in the decades to come.

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The study, which includes the University of Colorado at Boulder and Embry-Riddle Aeronautical University, provides a market analysis for estimating future ozone layer depletion based on the expected growth of the space industry and known impacts of rocket launches.

Future ozone losses from unregulated rocket launches will eventually exceed ozone losses due to chlorofluorocarbons, or CFCs, which stimulated the 1987 Montreal Protocol banning ozone-depleting chemicals, according to Martin Ross, chief study author from The Aerospace Corporation in Los Angeles.

"As the rocket launch market grows, so will ozone-destroying rocket emissions," said Professor Darin Toohey of CU-Boulder's atmospheric and oceanic sciences department.

"If left unregulated, rocket launches by the year 2050 could result in more ozone destruction than was ever realized by CFCs," he added.

Since some proposed space efforts would require frequent launches of large rockets over extended periods, the new study was designed to bring attention to the issue in hopes of sparking additional research, explained Ross.

"In the policy world, uncertainty often leads to unnecessary regulation," he said. "We are suggesting this could be avoided with a more robust understanding of how rockets affect the ozone layer," he added.

According to Toohey, current global rocket launches deplete the ozone layer by no more than a few hundredths of 1 percent annually.

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If Left Unregulated, Rocket Launches Could Result In More Ozone Destruction

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