was the biggest emitter of greenhouse gas in the world in 2011. The United States and China together totaled of global greenhouse gas emissions. India, Japan, and the Russian Federation together totaled the greenhouse gas emissions of . According to the pie chart, emit the same amount of greenhouse gas.
One purpose of the Clean Air Act is to
Primary air quality standards are designed to protect the health of . People with asthma can expect clean air under the standards in the Clean Air Act. air quality standards provide protection of public welfare. are covered under the act’s secondary air quality standards.
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