2007 2009 Air Pollution 
Law Columbia
DECEMBER 9, 2024
The case involves EPAs 2024 Vehicle Standards that set new air pollutant and greenhouse gas (GHG) emissions standards for model year 2027 through 2032 Light- and Medium-Duty Vehicles, which have been challenged by states and industry groups. In 2007, the Supreme Court held in Massachusetts v.
Union of Concerned Scientists
APRIL 9, 2025
In a blitz of destructive actions announced by EPA Administrator Lee Zeldin last month, he specifically called for a reconsideration of the 2009 Endangerment Finding. In an earlier post , I laid out some of the history and context for the 2009 science-backed Endangerment Finding and the Cause or Contribute Finding.
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Legal Planet
MARCH 17, 2025
In late 2009, EPA made a formal finding often called the Endangerment Finding that greenhouse gases may endanger human health and welfare. In this post, Ill explain the 2009 finding, its significance, the specific arguments EPA is making, and why they are likely to fail. First, it has to qualify as an air pollutant.
Union of Concerned Scientists
FEBRUARY 18, 2025
Among the many attacks in President Trumps Day 1 Executive Order on unleashing American (fossil) energy , is a directive to EPA administrator Zeldin to reevaluate the agencys bedrock 2009 scientific determination of the harms caused by heat-trapping emissions and submit recommendations within 30 days (i.e. this week).
Law Columbia
OCTOBER 18, 2024
Section 111 requires EPA to establish standards of performance for certain categories of stationary sources that “cause[ ], or contribute[] significantly to, air pollution which may reasonably be anticipated to endanger public health or welfare.” In 2007, the Supreme Court held in Massachusetts v.
Legal Planet
JULY 30, 2025
Second, repealing the endangerment finding allows EPA to avoid replacing all the Biden Administration climate rules that were issued under the Clean Air Act after it rescinds them. EPA , decided in 2007, had two important findings. Massachusetts v.
PA Environment Daily
APRIL 7, 2023
PA Bulletin, page 2007 ) Air Quality Permits -- Greylock Midstream, LLC - Veres Compressor Station: DEP accepted General Permit-5 for Veres Compressor Station for associated compressors, pigging operations and other air pollution sources at the facility in Greene Twp., Susquehanna County. ( Butler County. (
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