Just the wells themselves are prone to leaking lots of toxic gases, and a lot of the modern extraction procedures have additional risks too. https://www.latime

Just the wells themselves are prone to leaking lots of toxic gases, and a lot of the modern extraction procedures have additional risks too. https://www.latimes.com/environment/story/2020-03-05/deserted-oil-wells-los-angeles-toxic-fumes-cleanup-costs https://www.latimes.com/environment/story/2020-03-05/deserte... Modern epidemiology also enables really accurate tracking of the increase in asthma and other health problems near wells: https://www.usnews.com/news/cities/articles/2021-06-02/urban-oil-wells-linked-to-asthma-and-other-health-problems-in-los-angeles https://www.usnews.com/news/cities/articles/2021-06-02/urban...