ESGRâs Customer Service Center is available to answer a USERRA question or to refer cases to a trained Ombudsman. Contact the Customer Service Center Monday through Friday (except federal holidays) 8AM to 6PM (EST): 1  By Phone: 800-336-4590 option 1. 2  By Email: osd.USERRA@mail.mil.
Because a large share of air pollution is caused by combustion of fossil fuels such as coal and oil, the reduction of these fuels can reduce air pollution drastically. Most effective is the switch to clean power sources such as wind power, solar power, hydro power which don't cause air pollution.
The pollutants released into the atmosphere cause local air pollution (see Table of Common Pollutants). However, they also cause regional air pollution, as with huge plumes of smoke covering a large area, and acid rain.n some cases, air pollutants contribute to climate change, and greenhouse gases contribute to air pollution: 1  Air pollutants such as ground-level ozone and soot (a portion of particulate matter) contribute directly to global warming, which is linked to climate change.