India is home to some of the world’s most polluted cities. An unintended but welcome
consequence of the lockdown to contain the coronavirus has been improved air quality throughout the country.
Growing Threat of Air Pollution
Poor air quality has come to be recognized as a serious health risk and drag on economic development in India. Though there are many types of air pollutants, these small particulates in the air, about one-thirtieth the width of a human hair, are the most harmful to human health. They can penetrate deep into the lungs, enter the bloodstream and cause deadly illnesses such as lung cancer, stroke, and heart disease.
pandemic, for billions around the world the virus has changed life as we knew it. 
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food system? 
increased to levels not seen in more than a decade, to 150 billion cubic meters (bcm), equivalent to the total annual gas consumption of Sub-Saharan Africa.
abruptly halted the movement of people that characterizes our interconnected world. The implications are enormous for migrants, who rely on working away from home to support themselves, their families, and their communities. Many of them are now in conditions that put them at greater risk of contracting COVID-19. The pandemic is also affecting critical sectors like agriculture where labor shortages are looming.