The degassing method at Lake Nyos [0] is also interesting. They installed pipes reaching down into the water layers that contain lots of carbon dioxide and used

The degassing method at Lake Nyos [0] is also interesting. They installed pipes reaching down into the water layers that contain lots of carbon dioxide and used a pump to move water up. As the pressure decreased, less gas could be dissolved and created bubbles which rise and take water with it[1]. After an initial powered pumping, the process is self-sustaining and continuously transports unproblematic amounts of carbon dioxide to the surface. This prevents built-up of dangerous amounts of carbon dioxide dissolved in the water and a disaster as it happened in 1986. [0] https://en.wikipedia.org/wiki/Lake_Nyos https://en.wikipedia.org/wiki/Lake_Nyos [1] similiar to an air-lift pump in a pond