Human: How does the ozone hole affect our environment? Assistant: 
The ozone hole is caused by a combination of natural and human-made processes. Natural processes include solar radiation, which breaks down oxygen molecules in the stratosphere into O3 (ozone) and O2 (oxygen). Human-made processes involve air pollution from burning fossil fuels that depletes the amount of O3 in the atmosphere. This reduction of O3 allows more UV radiation to reach Earth's surface, leading to increased rates of skin cancer, cataracts, and other health problems.