Application To Greenhouse Gas Emissions
EPA began regulating greenhouse gases (GHGs) from mobile and stationary sources of air pollution under the Clean Air Act for the first time on January 2, 2011. Standards for mobile sources have been established pursuant to Section 202 of the CAA, and GHGs from stationary sources are controlled under the authority of Part C of Title I of the Act. See Regulation of Greenhouse Gases Under the Clean Air Act.
Below is a table for the sources of greenhouse gases, taken from data in 2008. Of all greenhouse gases, only about 54 percent of the sources are manageable under the CAA, marked with an asterisk (*). All others are regulated independently, if at all.
| Source | Percentage |
|---|---|
| Electric Generation* | 34% |
| Industry* | 15% |
| Large Non-Agricultural Methane Sources* | 5% |
| Light-, Medium-, and Heavy-Duty Vehicles | 22% |
| Other Transport | 7% |
| Commercial and Residential Heating | 7% |
| Agriculture | 7% |
| HFCs | 2% |
| Other | 1% |
Read more about this topic: Clean Air Act (United States)
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