An ongoing methane leak involving several long-term idle wells in Southern California is raising safety concerns for nearby residents and highlights an important climate issue. Southern California has some of the worst air quality in the country, and leaks like these compound the negative impacts on some of the country’s most vulnerable populations. Both in California and across the country, many hundreds of thousands of end-of-life oil and gas wells are idle. That means that they are just sitting around awaiting proper site closure, which involves plugging the wells with cement to prevent gases or liquids from escaping and threatening the environment and public health.
Several such wells were recently found to be leaking methane — a powerful greenhouse gas that often escapes from oil and gas facilities alongside other toxic pollutants — in the Morningstar section of Bakersfield, CA. Local residents are concerned about the possibility of subsurface methane migration to homes and other structures in the vicinity.
While CalGEM and other agencies work to investigate and remediate the situation, four takeaways are already emerging: