- Department of Labor Statistics. http://www.bls.gov/ooh/home.htm
- Earth’s Energy Budget. http://science-edu.larc.nasa.gov/energy_budget/
- Eco Canada: Environmental Careers Organization. http://www.eco.ca/occupationalprofiles/profiles/glaciologist/25/
- EPA: Coal. http://www.epa.gov/cleanenergy/energy-and-you/affect/coal.html
- Facts About Niagara Falls. http://www.niagarafallslive.com/facts_about_niagara_falls.htm
- My NASA Data – Live Access Server – Climate Change. http://mynasadata.larc.nasa.gov/live-access-server/
- National Snow & Ice Data Center. http://nsidc.org/
- Niagara Falls Geology Facts & Figures. http://www.niagaraparks.com/about-niagara-falls/geology-facts-figures.html
- PBS LearningMedia – Earth’s Albedo and Global Warming. http://www.pbslearningmedia.org/resource/ipy07.sci.ess.watcyc.albedo/earths-albedo-and-global-warming/
- Union of Concerned Scientists: Water for Coal. http://www.ucsusa.org/clean_energy/our-energy-choices/energy-and-water-use/water-energy-electricity-coal.html