Diwali is a joyous occasion for many Hindus who celebrate the festival of lights in India. But some people skirt the law, launching firecrackers that significantly contributes to lower air quality.
Researchers are tracking dramatic drops in traditional air pollutants, such as nitrogen dioxide, smog and tiny particles as most people remain indoors amid coronavirus lockdowns across the world.
The spread of Covid-19 is pressuring the human race to look at another global calamity: climate change.
In recent years, smog has become a problem for some cities in Pakistan and neighboring India due to industrial and transport pollution and the practice by farmers to burn stubble crop.
Toxic haze from Indonesian forest fires closed thousands of schools across the country and in neighbouring Malaysia amid health concerns.
Blazes have been raging on Sumatra and Borneo islands with Indonesia deploying water-bombing helicopters and thousands of security forces to tackle them. In recent days, fires sent toxic smog floating over Malaysia triggering a diplomatic row.
Residents worry about the impact on their health. Even as the government says it is taking steps to cut down on air pollution, campaigners say it is not enough.
As air quality continues to be a problem in New Delhi, some businesses have started using a new technology to improve the air in their offices.
This November, toxic smog enveloped New Delhi for 10 days with pollutants reaching 60 times over the permissible limit.
The smog is part of pollution which kills more than 125,000 people every year in Pakistan according to a Gates Foundation institute study.
Indian capital New Delhi, has been under a thick blanket of smog. This is the second year in a row that the city is out of breath due to the excessive number of motor vehicles and crop burning.
The air in Delhi is the worst it's been all year. Experts compare breathing the air to smoking a couple of packs of cigarettes a day. The Lancet medical journal recently estimated some 2.5 million Indians die each year from pollution.
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