BERNAMA.com - Unexpected increase in emissions of banned ozone-destroying chemical shocks scientists
malay english mandarin arabic espanol fb tw ig

WORLD NEWS


Unexpected increase in emissions of banned ozone-destroying chemical shocks scientists

Last update: 17/05/2018
 
LOS ANGELES, May 17 (Bernama) -- Emissions of a banned, ozone-eating chemical are rising, a group of scientists reported Wednesday, suggesting someone may be secretly manufacturing the pollutant in violation of an international accord, Xinhua news agency reported.

A model analysis of the findings suggests an increase in CFC-11 emissions of about 25 percent since 2012, despite the chemical being part of a group of ozone pollutants that were phased out under the 1987 Montreal Protocol, according to the new study, published Wednesday in the journal Nature.

The chemical, called Trichlorofluoromethane, or CFC-11, is one of the chemicals most responsible for the giant hole in the ozone layer that forms over Antarctica each September.

"The increase in emission of CFC-11 appears unrelated to past production. This suggests unreported new production, which is inconsistent with the Montreal Protocol agreement to phase out global CFC production by 2010," said the study.

Chlorofluorocarbons (CFCs) were used in making foams for furniture and buildings, in aerosols and as refrigerants. But they were banned under the global Montreal protocol after the discovery of the ozone hole over Antarctica in the 1980s.....

 
 
 

       Previous Top Story