Earth Day is celebrated to promote environmental protection and conservation. People work to protect human health from pollution and preserve plants. Environment Day encourages awareness of environmental issues as people recognize their role in protecting the planet for all. Some common problems that pollute the environment include auto oil leaks, paint brush washing, overflowing trash cans, and more. Solutions include reducing, reusing and recycling products and waste, as well as composting organic matter. People can also save energy by turning off lights and electronics when not in use, closing doors, and wearing warm clothing instead of overusing heating and cooling.