The layer that runs on top of the troposphere is called the stratosphere.

Here's a breakdown:

* Troposphere: This is the lowest layer of the atmosphere where we live and where weather occurs. It's characterized by decreasing temperature with altitude.

* Stratosphere: This layer sits above the troposphere. It's known for containing the ozone layer, which absorbs most of the Sun's harmful ultraviolet radiation. The temperature in the stratosphere actually increases with altitude due to the absorption of UV radiation.

Let me know if you have any other questions about the atmosphere!