Researchers quantified emissions from the Aliso Canyon well leak, which was equal to one-quarter of Los Angeles’ annual methane pollution.
![The Aliso Canyon well is located in the Santa Susanna Mountains of southern California. The actual well site is indicated by the circle. (Image credit: UC Davis) The Aliso Canyon well is located in the Santa Susanna Mountains of southern California. The actual well site is indicated by the circle.](/sites/default/files/styles/landscape_width_1275/public/legacy/image/2019/Jun/AlisoCanyon_aerial_image%20%281%29.jpg?itok=lB34O38u)
The Aliso Canyon well is located in the Santa Susanna Mountains of southern California. The actual well site is indicated by the circle. (Image credit: UC Davis)