The Montreal Protocol, signed in the 1980s, has slowly repaired the ozone hole, and now scientists have found another benefit – it has slowed climate change by as much as 25 percent,media reported. The ozone layer is a high level of ozone concentration in the stratosphere of the atmosphere, helping the Earth to remain livable by reflecting the most harmful solar harmful radiation.
But in the mid-1980s, scientists discovered a huge hole in the ozone layer in Antarctica. A few years later, nearly 200 countries signed the Montreal Protocol, banning the use of CFCs that were to blame.
Now, with the ozone hole rapidly shrinking, this is often hailed as a successful example of global environmental action. According to a new study by the University of New South Wales (UNSW), the results may be better than we thought. The researchers modeled the global climate using two different scenarios – one scenario for the Montreal Protocol and one scenario not developed. These cover the period from the 1980s to the present, and predict the future at a conservative estimate of 3% per year.
The team found that many measures to address climate change were much better than usual under the Montreal Protocol. By the middle of this century, the global average temperature will be expected to be at least 1 cC lower than in the absence of a set of temperatures. In the absence of a set, and Arctic temperatures are expected to rise to 3 to 4 degrees Celsius.
Rishav Goyal, lead author of the study, said: “The high amount of CFCs produce seine thousands of times more potency than carbon dioxide, so the Montreal Protocol not only helps repair the ozone layer, but also reduces a large part of global warming.” It is worth noting that the Kyoto Protocol has a much greater impact on global warming than the Kyoto Protocol, which is specifically designed to reduce greenhouse gases. Actions as part of the Kyoto Protocol will reduce temperatures by only 0.12 degrees Celsius by the middle of this century, while the Montreal Protocol will reduce temperatures by 1 degrees Celsius. “
In addition, the study noted that the Montreal Protocol also mitigated the negative effects of climate change. It is estimated that without the Protocol, the Arctic summer sea ice area would be reduced by about 25 per cent. As a result of the Protocol, Greenland’s ice sheets are melting and sea levels rise at a slower rate.
Matthew England, co-author of the study, said: “The Montreal Protocol has successfully demonstrated that international treaties to limit greenhouse gas emissions are effective. They can affect our climate in a very beneficial way and can help us avoid dangerous levels of climate change. The Montreal Protocol classifies cfcs, and the next major objective must be to reduce our CO2 emissions. “
The study was published in Environmental Research Letters.