Pollution is caused by unwanted changes to air, water, and soil from human activities. There are six main types of pollution: air, soil, water, noise, radiation, and thermal. Factories and industry, as well as global warming, are causing the earth to heat up rapidly. Water levels are rising and the environment is totally polluted, harming human health. As a result of all human activity, there is an ozone hole, rising sea levels, and melting ice caps. We must come together to save our life-giving mother earth by conserving water and energy and planting more trees.