New Delhi: The thick layer of toxic smog that shrouds the national capital ... in enacting the first air quality legislation in the United Kingdom, paving the way for future environmentalism.

The toxic sulphur dioxide gas which had covered the skies of the United Kingdom on Saturday ... led to the famous London smog ...

Claude Monet was enchanted by the mysterious light generated by London's famous "smog", and the city he loved ... in countries including France, the United States and Ireland.