{"type":"rich","version":"1.0","title":"The Great Smog of London (1952): When the Air Itself Became a Silent Killer","provider_name":"5 minutes of history","provider_url":"https://podcast.dbutton.rocks/@5minutesofhistory","author_name":"5 minutes of history","author_url":"https://podcast.dbutton.rocks/@5minutesofhistory","html":"<iframe src=\"https://podcast.dbutton.rocks/@5minutesofhistory/episodes/the-great-smog-of-london-1952-when-the-air-itself-became-a-silent-killer/embed\" width=\"100%\" height=\"112\" frameborder=\"0\" scrolling=\"no\"></iframe>","width":485,"height":112,"thumbnail_url":"https://podcast.dbutton.rocks/media/podcasts/5minutesofhistory/the-great-smog-of-london-1952-when-the-air-itself-became-a-silent-killer_og.jpg","thumbnail_width":1200,"thumbnail_height":1200}