When in the last days of May 2020 several respected institutions such as the Harvard School of Public Health, and the All Party Group on Air Pollution in the UK, came up with strong emerging evidence that air pollution is a major contributing factor to the spread of Covid 19, Dr. John Campbell took a closer look. Outdoor air pollution already kills 4.2 million people per year in the world.
Dr. John Campbell is a retired Nurse Teacher in England who has gone through rigorous scientific training. Since the beginning of the pandemic he has walked into his study - once or even twice a day - and turned the camera on for his welcome and given updates on Covid 19. They are archived on his YouTube channel under âcampbellteachingâ.
Always friendly, personal with the scientific sources for his topics displayed on handmade slides - he explains complicated processes in no nonsense practical terms. Dr. John Campbell recorded this lesson on Air Pollution on May 31, 2020
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