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Externalities Article Review
Global warming—The EPA’s view Go to https://www.epa.gov/ghgemissions/overview-greenhouse-gases (Links to an external site.) (look under overview of greenhouse gases)
- What are the major greenhouse gases? What is the total emission measured in metric tons? Which gas has the highest share of emissions? (Links to an external site.)
- What sector accounts for the largest share of emissions? (Links to an external site.)
- What is the trend of emissions in the United States? Examine the trend year-over-year and also longer term trends.
Externalities Article Review Answer
Major greenhouse gases are carbon dioxide, methane, nitrous oxide, and fluorinated gases. As of 2015, the total global emissions in metric tons were: carbon dioxide 34,521.91, methane 8,240.68, nitrous oxide 2,997.24, and fluorinated gases 1,000.64. Meanwhile, as of 2019, the US total emissions in metric tons are as follows: carbon dioxide 5,255.82, methane 659.71, nitrous oxide 457.14, and fluorinated gases 185.67 for a total of 6,558.35. As reflected, the highest gas emitted was carbon dioxide.