Ozone layer – BOL News Staging

KARACHI: Every person in society should know the importance of a clean and healthy environment and its effect on human life and all living things, and they must play their role in improving the environment in our surroundings.

We need to create awareness among the masses about the need to protect the ozone layer and the environment for the future of our generations.

Unfortunately, schools, colleges, and even universities are not educating students about social values and norms whereas in the west students regardless of what they are studying get proper information and teach about the importance of social aspects and the role of individuals for the betterment of society.

We have to give topmost priorities to the social interests and civic issues of a society over the political benefits else we will never be able to progress in the right direction. These views were expressed by the Vice Chancellor of the University of Karachi Prof Dr Khalid Mahmood Iraqi.

He was addressing the seminar organized by the KU Landscape and Gardening Council in collaboration with the KU’s Institute of Environmental Studies on the World Ozone Day under the theme of ‘Ozone for Life, Plant More Trees, Reduce Air Conditioners’ at the IES.

The International Day for the Preservation of the Ozone Layer is celebrated every year on September 16, and it was designed by the United Nations General Assembly.

Dr Iraqi mentioned that clean drinking water is essential for a healthy life because it cures many diseases but ironically a large number of people in the country do not have access to clean drinking water.

On this occasion, an environmentalist Syed Mosuf Ali gave a detailed presentation on the importance of ozone and its impact on environmental pollution, saying that the loss of sunlight to the earth is due to the emission of chlorofluorocarbons from greenhouse gases.

Meanwhile, Karachi University Pharmacy Science Club arranged its first science fair at the new building of the faculty of pharmacy.

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The ozone layer is on track to recover within decades.
International cooperation aided in mitigating the damage.
If global policies remain unchanged, the ozone layer is likely to recover to 1980 levels.

According to a new United Nations-backed assessment, the Ozone layer is on track to recover within decades as ozone-depleting chemicals are phased out globally.

The ozone layer shields the Earth from dangerous ultraviolet rays. However, scientists have been warning about a breach in this shield since the late 1980s, caused by ozone-depleting compounds such as chlorofluorocarbons, or CFCs, which are often found in refrigerators, aerosols, and solvents.

International cooperation aided in mitigating the damage. According to a panel of experts’ assessment published on Monday, the usage of CFCs has fallen by 99% since the Montreal Protocol entered into force in 1989, which began the phase-out of those and other ozone-harming chemicals.

If global policies remain unchanged, the ozone layer is likely to recover to 1980 levels for the majority of the world by 2040, according to the estimate. The timeline for recovery in polar locations is longer: 2045 in the Arctic and 2066 in the Antarctic.

“Ozone action establishes a precedent for climate action. “Our accomplishment in phasing out ozone-depleting chemicals demonstrates what can and must be done urgently to transition away from fossil fuels, reduce greenhouse emissions, and so limit temperature rise,” said World Meteorological Organization Secretary-General Petteri Taalas.

Zone-depleting gases are also powerful greenhouse gases, and without a prohibition, the globe may have warmed by up to one degree Celsius, according to a 2021 study published in the journal Nature.

Since the industrial revolution, the Earth has warmed by about 1.2 degrees Celsius, and scientists have warned that this should be kept to 1.5 degrees Celsius in order to avoid the worst repercussions of the climate problem.

According to scientists, exceeding 1.5 degrees Celsius would significantly raise the likelihood of major drought, wildfires, floods, and food shortages.

Solar geoengineering

For the first time in this four-year review, scientists considered the possibility of solar geoengineering: the endeavor to limit global warming through techniques such as injecting particles into the stratosphere to bounce sunlight out of the earth’s atmosphere.

They discovered that stratospheric aerosol injection could help limit climate warming, but they cautioned that there could be unforeseen consequences. The deployment of the technology “may also alter stratospheric temperatures, circulation, and ozone formation, destruction, and transport rates,” according to the paper, which is issued every four years.

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