The initial Covid 19 impact on world started since 2019 and its still continue.The global impact of covid 19(corona virus) has been very devastating in every field of life.Outbreaks of COVID 19 have significantly reduced air pollution and unhealthy gas emissions across the world .But is all this temporary or will the reduction in greenhouse gas emissions be lasting? The world has changed in the last few months. Thousands have died, and hundreds of thousands more have been infected with the corona virus. Corona is a deadly virus that the world didn't know about before December 2019. Millions of people have survived the outbreak, but their lives have changed dramatically. ۔
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| Covid 19 impact on world |
Covid 19 impact on environment
All of these measures are aimed at preventing the spread of Covid 19 and keeping the death toll to a minimum. But there are also some extraordinary consequences of these measures. Because industries, transportation and businesses are not fully open, there has been a sharp drop in carbon emissions. At present, compared to the early months of last year, measures to prevent the spread of the virus in New York have resulted in a 50 percent reduction in air pollution. Initially, emissions were reduced by 25% as people were forced to live in homes, factory doors were closed and the country's six largest power plants compared to the last few months of 2019. It used 40% less coal.
According to the Chinese Ministry of the Environment, the proportion of people in 337 cities in the country receiving high quality air for breathing was 11.4% higher than last year. Satellite imagery in Europe shows that the effects of nitrogen oxide emissions are diminishing in northern Italy. The same is true of Spain and the United Kingdom. It could have led to such a dramatic change. In addition to the untimely deaths caused by this global pandemic, millions of people are facing unemployment, because of severe economic hardship due to sanctions imposed on many businesses by the corona virus are in trouble.
Covid 19 impact on global economy
Economic activity is stagnant and stock markets are falling sharply, with the level of air pollution declining. This is in stark contrast to the picture of a carbon-free, sustainable economy, which the world has been trying to persuade for decades, according to researchers. It cannot be seen as a solution to air pollution. But it is not possible to say for sure how long this reduction in emissions will last. Eventually, when the epidemic subsides, emissions of carbon and polluting gases will resume.
Will this period of clean and transparent atmosphere be like never before? Or will the change we are seeing today be lasting? The first thing to consider, says Kimberly Nicholas, a researcher at the University of Lund in Sweden, are a few different factors that have led to a reduction in emissions.
Pollution Reduction due to covid 19
These emissions have been reduced in countries where people have been told to stay indoors to prevent the spread of the epidemic in view of public health, and unnecessary mobility has been eliminated, as travel by air and road Greenhouse gas emissions account for 11% and 72% of emissions, respectively. We know that emissions will remain low until transportation is limited during a global pandemic. But what will be the condition when these restrictions will be no more(lifted) ? For example, when people are allowed to travel again after being locked in their homes, the emission of polluted gases will start again as before.
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| Global impcat of covid 19 |
Air pollution reduction
If the changes caused by the corona virus persist, the emission of polluted gases will be reduced, but it could be reversed. Currently, people are postponing their plans to travel to distant places and plan to do so later, he said, adding that people who travel long distances frequently are more likely to emit carbon emissions. So emissions, once the travel ban is lifted, people will return to their normal levels when they return to their normal routines.
This is not the first time that a global pandemic has not affected carbon dioxide in the atmosphere. Outbreaks appear to be exacerbated during human history. According to Julia Pongrats, professor of geography at the University of Munich, Germany, in the 14th century, when the plague "Black Death" spread in Europe, and in the 16th century, when the South The United States was occupied by Spain and carried with it the measles epidemic, and the two epidemics made a small difference in the levels of carbon dioxide in the atmosphere.
Professor Pongrats estimates this from tiny air bubbles frozen in the ancient layers of ice. I was born. Other investigations have revealed that such a large number of deaths had left vast cultivated areas empty and that plants had spontaneously come in and absorbed large amounts of carbon dioxide gas. But there is no significant difference. The nature of the impact on the environment will be similar to other events in the current era, such as the financial crises of 2008 and 2009.
According to Professor Pograts, global emissions were still very low at that time. Pollution from industrial activities can be compared to transportation. Industrial activities, production and construction account for 18.4% of the total global pollution caused by human activities. Crisis emissions fell 1.3 percent. But with the recovery of the economy in 2010, it reached its peak again.
Professor Pongrats says there are indications that the corona virus may have a similar effect. For example, the demand for oil, steel and other metals is currently lower than other items. But reserves of raw materials are at an all-time high, so production will be restored very quickly. When will it end? According to Professor Pongrats, it is very difficult to predict at the moment. But we may see longer and deeper effects.
Covid 19 impact on world import and export
If the Corona virus epidemic continues by the end of this year, low consumer incomes will reduce demand for goods and demand for oil will not grow so fast, although productivity will remain in place. The Organization for Economic Co-operation and Development (OECD) predicts that despite all this, the global economy will grow by 2020, although growth rates are expected to halve due to the corona virus. Glenn Peters, a researcher at the Center, says that despite the recovery, global emissions will fall by 0.3% this year, less than the economic crisis of 10 years ago. But this time, if the focus is on using clean energy sources, the reduction in emissions will be even lower after the resumption of economic activity.
There are many other indirect ways that the effects of corona virus can last longer. One is to get rid of the idea of climate change in the minds of the people as the serious issue of saving human lives has become more important. The other way is to make the debate on environment more difficult. Yes, because public gatherings are being postponed. Environmentalist Greta Thonberg has called for digital activism instead of protests over the corona virus. Changes have taken place since the Corona virus epidemic was brought under control.
Professor Nicholas says research from the social sciences has shown that changes made at a critical time are more effective. A 2018 study from the University of Zurich in Switzerland found that Vehicles were not allowed to drive and bicycles were provided to them. And then when they got their cars back, they used them less. Research conducted at Kyoto University in Japan, led by Satoshi Fuji, also revealed that when a motorway was closed. Gone and people were forced to travel by train instead of cars. Even after the road was opened, people who used to drive used to prefer to travel on public transport or trains.
A public reaction to the corona virus, to which environmental scientists have expressed mixed views, is a collective effort to improve each other's health in the community. This raises the prospect of swift action if climate change poses a serious threat, says Donna Green, a professor at the University of New South Wales in New Zealand. But at the national and international levels, if we have to do something, we can do it.
According to Professor Pongrats, self-imposed loneliness has given people the opportunity. In doing so, they should consider their use and consumption habits and practices. It is safe to say that no one in the world wanted to reduce emissions in this way.
Read more.. Global warming and Climate change
Covid de 19 has had a devastating effect on global mortality, health care, employment and mental health. But the lesson is that if people care about each other, they can change a lot, Lessons can be very important for solving environmental problems.