Lucknow, March 23 -- As the nation shifts abruptly to lockdown mode to fight the deadly novel coronavirus, with people staying indoors on Sunday on Prime Minister Narendra Modi's call for 'Janata Curfew', there has been an unexpected result -the clear blue sky.

"Many of the actions the people are taking to fight the coronavirus, like self-imposed 'curfew' or working from home, will have an additional benefit of reducing carbon footprint, besides breaking the virus transmission chain. This will help in reduction of individual's production of greenhouse gases thus significantly curbing emission. This in turn could help in improving the air quality," said Narendra Nath, a scientist with the Uttar Pradesh Pollution Control Board.

He said that...