The covid-19 pademic has caused industrial activity to shut down and canceled flights and other journey slashing greenhouse gas emissions and air pollution around the world. Keeping this in mind write a letter to your friend in Punjab expressing your concern for the pandemic and discussing about the changes that occurred due to this in your life and drastic impact it has put in your life.
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Answer:
With many factories and businesses closed, combined with fewer cars on the road and fewer planes in the sky, our natural environment is recovering slowly.
China's 40% drop in NO₂ on 2019 levels for January and February in some areas equates to removing a whopping 192,000 cars.
The COVID-19 pandemic has caused industrial activity to shut down and cancelled flights and other journeys, slashing greenhouse gas emissions and air pollution around the world. If there is something positive to take from this terrible crisis, it could be that it’s offered a taste of the air we might breathe in a low-carbon future.
The World Health Organisation (WHO) estimates that about 3 million people die each year from ailments caused by air pollution, and that more than 80% of people living in urban areas are exposed to air quality levels that exceed safe limits. The situation is worse in low-income countries, where 98% of cities fail to meet WHO air quality standards.
Measurements from the European Space Agency’s Sentinel-5P satellite show that during late January and early February 2020, levels of nitrogen dioxide (NO₂) over cities and industrial areas in Asia and Europe were lower than in the same period in 2019, by as much as 40%.
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These pictures show how China's air pollution has dropped during the coronavirus outbreak
coronavirus nature environment climate change cities urban life streets deserted pollution traffic cars noise air clean
As new daily cases of COVID-19 reached their peak in China, air pollution plummeted.
Image: ESA/NASA
Two weeks after the nationwide lockdown was announced on March 23 in the UK, NO₂ pollution in some cities fell by as much as 60% compared to the same period in 2019. NASA revealed that NO₂ pollution over New York and other major metropolitan areas in north-eastern USA was 30% lower in March 2020, compared to the monthly average from 2015 to 2019.
Most NO₂ comes from road transport and power plants, and it can exacerbate respiratory illnesses such as asthma. It also makes symptoms worse for those suffering from lung or heart conditions. NO₂ emissions have been a particularly thorny problem for Europe, with many countries in breach of EU limits.
In a sense, we are conducting the largest ever global air pollution experiment. Over a relatively short period of time, we’re turning off major air pollutant sources in industry and transport. In Wuhan alone, 11 million people were in lockdown at the height of the outbreak there. Across China, over half a billion. China normally emits in excess of 30 mega tonnes of nitrogen oxides per year, with estimates for 2019 reaching 40 mega tonnes.