Topic 5 References
BBC News. “Keystone XL Pipeline: Why is it So Disputed.” January 24, 2017. http://www.bbc.com/news/world-us-canada-30103078
Chan, Gabriel, Robert Stavins, Robert Stowe, and Richard Sweeny. Harvard Environmental Economics Program. The S02 Allowance Trading System and the Clean Air Act Amendments of 1990. January 2012. https://www.hks.harvard.edu/m-rcbg/heep/papers/SO2-Brief_digital_final.pdf
The Economist. “ETS, RIP.” April 20, 2013. http://www.economist.com/news/finance-and-economics/21576388-failure-reform-europes-carbon-market-will-reverberate-round-world-ets
Johnson, Willian Oscar. Sports Illustrated. “Back on Track.” April 30, 1990. https://www.si.com/vault/1990/04/30/121923/back-on-track-earth-day-success-story-the-chattanooga-choo-choo-no-longer-spews-foul-air
