- Acid Rain - Facts, news, children's resources, and links from Environment Canada.
- Acid Rain--A Contemporary World Problem - This website explores the causes and solutions to the acid rain problem.
- Freshwater Umbrella - Research programme of applied science projects to aid DEFRA make policy decisions concerned with air pollution, acid rain, and the effects on freshwater systems in the UK.
- Margot's Acid Rain SEA Project - Student's fun and informative site about acid rain, in North Carolina and in general.
- National Atmospheric Deposition Program (NADP) - US federal-state-NGO cooperative effort operating a national precipitation monitoring network to observe geographic and temporal trends in acidity, mercury, and other attributes. Includes data, maps, and meeting announcements.
- PPRP Atmospheric Deposition Measurement and Analysis - Information about and from regional acid deposition monitoring programs in the Chesapeake Bay watershed (USA).
- The Acid Rain Report - Student-created site discusses the causes, effects, geographic distribution, and possible solutions for acid rain.
- U.S. Geological Survey Data and Reports on Acid Rain, Atmospheric Deposition and Precipitation Chemistry - Information resources on acidic deposition in the United States.
- UK Acid Waters Monitoring Network - Monitors the ecological impact of acid deposition in areas of the United Kingdom believed to be sensitive to acidification.
- US EPA - Acid Rain - Information about causes and effects, how acid rain is measured, and what is being done to solve the problem. Includes activities for students.
- US EPA Acid Rain Program - About EPA efforts reduce electric utilities' emissions of sulfur dioxide and nitrogen oxides, the pollutants responsible for acid deposition. The program includes a system of tradable SO2 emissions allowances.
- What is Acid Rain and What Causes It? - A discussion of the causes and effects of acid rain, and possible policy solutions.
