Ozone in the atmosphere plays a dual role in global warming. While it helps protect the Earth from harmful UV radiation, changes in ozone levels can enhance the greenhouse effect, contributing to climate change. Ozone is decreasing in the upper atmosphere, which can reduce global warming, but there are signs of ozone increases in the lower atmosphere, which can worsen global warming. The complex interactions and feedback processes in the climate system make it challenging to fully understand the impact of ozone as a greenhouse gas.