2007 Carbon Dioxide Clean Air Act 
Legal Planet
JULY 12, 2023
Another scientist who focuses on greenhouse gas emissions accounting told the court Montana is responsible for tens of millions of tons of carbon dioxide emissions each year – the sixth-most in the U.S. Less squishy is the question of whether a favorable verdict would actually decrease emissions.
The Energy Law
JANUARY 6, 2010
497 (2007), in which the Supreme Court held that greenhouse gases were “pollutants” under the Clean Air Act and ordered EPA to determine whether greenhouse gases “may reasonably be anticipated to endanger public health or welfare” under Section 202 of the Act. See 74 Fed. 66496 (Dec. EPA, 549 U.S.
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The Energy Law
APRIL 7, 2010
497 (2007), the Supreme Court held that greenhouse gases are “pollutants” under the Clean Air Act but left open the specific question of whether greenhouse gases could be regulated under the PSD Program. In Massachusetts v. EPA, 549 U.S.
Union of Concerned Scientists
OCTOBER 4, 2023
Shortly thereafter, the Supreme Court ruled that EPA had the authority to regulate carbon dioxide emissions from passenger cars and trucks under Massachusetts v. EPA , and Congress finalized the Energy Independence and Security Act of 2007 , requiring increasing fuel economy standards.
Law Columbia
DECEMBER 9, 2024
EPAs 2024 Vehicle Standards EPA derives its authority and mandate to promulgate rules regulating mobile sources like light- and medium-duty vehicles from Section 202 of the Clean Air Act. In 2007, the Supreme Court held in Massachusetts v.
Smith Enviorment
JULY 12, 2022
Supreme Court issued a decision striking down an Obama era rule regulating carbon dioxide (CO2) emissions from existing power plants. EPA held the Obama administration’s Clean Power Plan Rule exceeded EPA’s authority under the Clean Air Act. A 2007 Supreme Court decision ( Massachusetts v.
Union of Concerned Scientists
MAY 19, 2022
Outside of bird protection acts of the early 20 th century, protections for water, air and the atmosphere are a late 20 th -century development, created in the wake of Rachel Carson’s 1962 treatise on pesticides, Silent Spring. Carbon dioxide is not a pollutant. All of us are exhaling carbon dioxide right now.
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