In what month of 1956 was the event that caused The Clean Air Act as a response?
Clean Air Act 1956: The Clean Air Act 1956 was an Act of the Parliament of the United Kingdom passed in response to London's Great Smog of 1952. Great Smog of London: The Great Smog of London, or Great Smog of 1952 sometimes called the Big Smoke, was a severe air-pollution event that affected the British capital of London in December 1952.
December