HumanNature

JANUARY 30, 2025

Guest Post by Tucker Melles , 2024-2025 Sustainability Leadership Fellow and Ph.D. We breathe oxygen from the atmosphere, weather systems distribute water, and the ozone in the upper atmosphere protects us from harmful radiation. However, we have negatively impacted our atmosphere in several different ways.

Ozone 52

Ozone Fossil Fuels Atmosphere Ground-Level Ozone 52

PA Environment Daily

OCTOBER 14, 2021

On October 14, the Department of Environmental Protection presented a proposed regulation that would adopt California’s existing Zero Emission Vehicle Program that requires 22 percent of the new passenger and light duty vehicle fleets offered for sale in the state be zero emission vehicles starting in model year 2025.

Nitrogen Oxides 52

Nitrogen Oxides Regulations Ground-Level Ozone 2025 52

Union of Concerned Scientists

MAY 21, 2025

Over 156 million people in the US are exposed to unhealthy levels of air pollutants, according to the recently published 2025 State-of-the Air report from the American Lung Association (ALA). It presents air pollution data at the county-level for two pollutants, deadly fine particulate matter (PM 2.5 ) and ground-level ozone.

Ozone 157

Ozone Ground-Level Ozone Air Pollution Clean Air Act 157

PA Environment Daily

NOVEMBER 21, 2024

These settlements are the latest in EPA’s urgent efforts to limit the greenhouse gas emissions that cause climate change and hold corporate polluters accountable for jeopardizing public health.” Uhlmann for EPA’s Office of Enforcement and Compliance Assurance.

Clean Air Act 116

Clean Air Act Ground-Level Ozone Carbon Dioxide Natural Gas 116

Union of Concerned Scientists

OCTOBER 15, 2024

For more on other harmful aspects of Project 2025, see this blog. The Heritage Foundation’s blueprint—Project 2025—to dramatically alter the US Environmental Protection Agency should concern you. Project 2025 takes aim at all those protections. Project 2025 takes aim at grants, as well. It does me.

2025 340

2025 Ground-Level Ozone Air Pollution Climate Change 340

Columbia Climate Law

DECEMBER 2, 2019

The emissions make a significant contribution to climate change because methane is a highly potent greenhouse gas which, in the first 20 years after it is released, traps approximately 84 times more heat in the earth’s atmosphere than carbon dioxide (on a per ton basis).

Regulations 52

Regulations Natural Gas Air Pollution Ground-Level Ozone 52