human
Why is there so much pollution in the world?
assistant
Pollution is caused by humans. We are polluting our planet at a rapid rate. This includes air, water, and land pollution. Humans have been causing pollution for centuries. In the past, people would burn wood to keep warm, but this led to air pollution. Nowadays we use fossil fuels like oil, gas, and coal, which release carbon dioxide into the atmosphere. This causes global warming, which leads to more extreme weather events and rising sea levels.