Latest News

Follow Us

Warnings from geological projects… Scientists: “A significant improvement in the ozone layer”

Scientists have confirmed that the ozone layer, which protects the earth from harmful radiation, is on the right path to recovery within four decades, warning of the danger of geoengineering projects to limit climate warming on this progress.
The experts, who published their estimates for 4 years under the supervision of the United Nations, pointed out that: “The gradual elimination of about 99% of banned substances that destroy ozone allowed the preservation of the ozone layer and contributed significantly to its recovery in the upper part of the stratosphere and reduced human exposure to harmful ultraviolet radiation.” From the sun,” according to Agence France-Presse.
Causes of the ozone hole
The hole in the ozone layer was caused by human-caused pollution, especially chlorofluorocarbons (CFCs), which were emitted by many refrigerators.
However, global cooperation over the past few decades has given the ozone layer a chance to recover.
The Montreal Protocol (Canada), signed in 1987 and ratified by 195 countries, significantly reduced the amount of CFCs in the atmosphere, and it seemed as if the ozone layer was able to fully recover, according to United Nations estimates.
“If current policies are maintained, the ozone layer is expected to return to 1980 values (before the ozone hole appeared) by 2066 over the Antarctic, 2045 over the North Pole and 2040 in the rest of the world,” the United Nations Framework Convention on Climate Change said.
In 2016, the Kigali Agreement also stipulated the phase-out of hydrofluorocarbons (HFCs), which are extremely harmful gases used in refrigerators and air conditioners. If the agreement is respected, warming could be reduced by 0.5 degrees Celsius by the year 2100, experts estimated.
But they also looked for the first time at the potential impacts on ozone of geo-engineering projects aimed at curbing global warming, and warned of undesirable consequences.
The idea is to intentionally add aerosols to the stratosphere to reflect some of the sun’s rays. One of these projects would be pumping billions of sulfur particles into the stratosphere.
John Pyle, co-chair of the UN’s scientific committee that works on ozone, warned that pumping particulate matter into the atmosphere “could lead to a dangerous decrease in the ozone level,” adding, “There are a lot of uncertainties.”



Leave a Reply

Your email address will not be published. Required fields are marked *