Micro Lake

The Micro Lake
"Nearly completely submerged."

This pocket remains mostly underwater, leaving practically no dry land other than the walls and ceiling. It is home to the H and its many descendants

Current Atmospheric Composition: 70% nitrogen, 24% oxygen, 2% argon, 22% carbon dioxide, and 0.1% other gases. Trace amounts of, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1%.

As no new oxygen is being created, carbon dioxide is going up while oxygen is decreasing.. With the complete lack of gas exchangers, carbon dioxide in the vast waters and little air of the Micro Lake is rising. On the other hand, oxygen is going down.

If left like this, a runaway greenhouse gas crisis is bound to happen. This will not only increase temperature, but also make it significantly harder to breathe.