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New Analysis Shows Public Health Impacts of Proposed Gas Plants in Wisconsin 

Union of Concerned Scientists

Costly and Inequitable In addition to emitting greenhouse gases, gas power plants also pollute the air with nitrogen oxides, sulfur dioxide, particulate matter, and volatile organic compounds.

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The State of the Air in 2024? Not Great

Union of Concerned Scientists

The American Lung Association’s State of the Air report measures three of the major types of pollutants in the San Joaquin Valley: long-term particle matter, short-term particle matter, and ozone. come from reactions of industrial pollutants (nitrogen oxides and sulfur oxides) with sunlight and unfinished fuel combustion.

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Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Union of Concerned Scientists

In order to enforce those standards, the state must be granted a waiver by the Environmental Protection Agency, something which Congress makes very clear should be given under virtually all conditions. We in Colorado have many days of problematic ozone. California is leading the way, but states are ready to follow.

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DEP Posted 92 Pages Of Permit-Related Notices In March 8 PA Bulletin

PA Environment Daily

PA Bulletin, page 2008 ) PA Bulletin - March 8, 2025 Note: The Department of Environmental Protection published 92 pages of public notices related to proposed and final permit and approval/ disapproval actions in the March 8 PA Bulletin - pages 1930 to 2022. The revised permit would increase the acreage by 1.3 Luzerne County. (

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California Ready to Take Giant Leap Toward Zero-Emission Trucks

Union of Concerned Scientists

million commercial trucks on California roads, and although they make up just seven percent of vehicles on the road, these trucks are responsible for more than one-quarter of greenhouse gas (GHG) emissions, more than 60 percent of smog-forming nitrogen oxides (NOx) and more than 55 percent of lung- and heart-harming fine particulate (PM2.5)

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DEP Invites Comments On Proposed Regional OTC Nitrogen Oxide Standards For Waste Combustors

PA Environment Daily

The Department of Environmental Protection published notice in the May 14 PA Bulletin inviting comments on nitrogen oxide emission reduction measures from municipal waste combustors proposed by the Northeast Ozone Transport Commission. Click Here for meeting materials that describe the proposed control measures.

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EPA Grant Program Helps to Accelerate Transition to Cleaner Ports

Union of Concerned Scientists

To accelerate the much-needed transition to cleaner ports nationwide, the Environmental Protection Agency (EPA) announced the Clean Ports Program (CPP), which provides $3 billion for zero-emission equipment and climate and air quality planning at our country’s ports.