The ozone hole was because of chemical formerly used in air conditioners and icebox . But unexampled research show that the same stuff is also behind half of the heating the Arctic feel between 1955 and 2005 .
Thestudy , published in Nature Climate Change on Monday , uses a telephone number of mood models to figure out how much these substances have impacted the Arctic ’s temperature salary increase , as well as sea icing loss . If there ’s any silver lining , it express that the efforts to phase them out in the late 1980s was a good mind for the ozone layer and the climate .
Researchers used 1955 as a jumping off breaker point because the use of ozone - consume substances like chlorofluorocarbons and hydrochlorofluorocarbons as refrigerant rise up steeply thereafter . They ladder the model under two scenario . In one , discharge followed the flight they did over the next 50 age while in another , ozone - depleting sum were kept at 1955 levels . The results showed that under the business as usual scenario , the one-year average worldwide temperature increase by 0.59 degrees Celsius ( 1.1 degree Fahrenheit ) . However , in the models without these nitty-gritty , the increase was only 0.39 arcdegree Celsius ( 0.7 degrees Fahrenheit ) . That imply that these substances are responsible for a third of worldwide thaw during this time period .
Photo: AP
https://gizmodo.com/polar-bears-have-invaded-a-russian-town-again-1840264090
In the Arctic , though , the thawing is more hard and the impacts of cut the chemicals even more spectacular . The temperature step-up in the Arctic was 1.59 degrees Celsius ( 2.9 academic degree Fahrenheit ) over the 50 years with ozone - exhaust chemical substance emissions . But steadying them at 1955 storey only farm 0.8 degrees Celsius ( 1.4 degrees Fahrenheit ) of warming , a pronounced diminution .
The shock of block up ozone - depleting meaning from rising expand well beyond air temperatures . The study attributes half of the Arctic ocean ice expiration in September — the calendar month when Arctic ocean ice losses are greatest — to these substances over the 50 - yr flow of the study .
The Montreal Protocol was ratified in 1989 in response the exasperate ozone hole . The purpose was to phase out these chemical , and it has mostly worked outside ahiccup or two . That means the ozone hole islikely to bring around this century . The new research indicatse that the phaseout might also helped keep further uttermost warming in the Arctic , though some of the surrogate refrigerant arepretty powerful greenhouse gases , too . Which , you have a go at it , maybe we should stop over emit those , too .
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