Edge Pocket

The Edge Pocket
"Being halfway the softest of materials, it is highly erodible."

Being roughly the smallest cave, and also the closest to the vacuum of space, it is a unique pocket. It is home to the T and its many descendants.

Current Atmospheric Composition: 60% nitrogen, 17% oxygen, 2% argon, 20% 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 waters and air of the Edge Pocket 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.