Summary
There are many old, unused oil wells across the United States that have not been properly sealed. These wells, called orphan wells, can release harmful substances into the environment, including methane, a greenhouse gas that contributes to climate change. Experts are working to locate and properly close these wells to prevent pollution.
Key Facts
- Orphan wells are old oil wells that have not been sealed properly and are no longer in use.
- These wells can leak oil, natural gas (methane), and toxins into water and air.
- Methane is a powerful greenhouse gas that can worsen climate change.
- It is estimated that there might be over a million undocumented orphan wells in the United States.
- More than 100,000 orphan wells have been officially recorded.
- Some wells were abandoned long ago before modern well-sealing methods were established.
- Experts and organizations are starting efforts to locate and plug these wells to stop further environmental damage.