Circle of Blue

JULY 9, 2025

These trends converged in Paris in 2015 when 195 countries signed a legally binding international treaty on climate change to reduce greenhouse gas emissions and attempt to keep global temperatures from rising to more dangerous levels. The consequence is more mercury in fish and more air pollution.

Clean Energy

PA Environment Daily

JULY 30, 2025

million Pennsylvanians living within a half-mile of active well sites. -- Allegheny, Bucks, and Philadelphia counties all received a D or F grade for ozone pollution in the American Lung Association’s 2025 State of the Air report. -- Nationally, air pollution from methane and co-pollutants causes an estimated $77 billion in annual health costs.

Clean Air Act

Union of Concerned Scientists

FEBRUARY 10, 2025

emissions, and just under 15 percent of climate-warming greenhouse gas emissions from the states on-road vehicles. These vehicles continue to be significant drivers of sickness from exposure to transportation pollution, particularly in areas adjacent to ports, warehouses, and freight corridors. times) the rate of non-ACT states.

Nitrogen Oxides

PA Environment Daily

JULY 10, 2025

VOCs, such as benzene, are harmful to health and can contribute to ground level ozone or smog that damages lungs and can trigger asthma attacks. I have had days where my own asthma has been aggravated for no other attributable reason than pollution escaping from these facilities.

Natural Gas

Union of Concerned Scientists

AUGUST 2, 2022

Last week, Senators Schumer and Manchin announced a compromise on a reconciliation bill, called the Inflation Reduction Act of 2022 , that includes significant climate and air quality progress and a goal to reduce greenhouse gas emissions nationwide by 40 percent by 2030. A key step towards addressing climate change and air quality.

Nitrogen Oxides

Real Climate

SEPTEMBER 19, 2021

So this is an attempt to put all of that in context and provide a hopefully comprehensive guide to how, when, and why to properly compare the two greenhouse gases. You might recall that GWP is defined as the ratio on per-kg basis of the temperature impact of other greenhouse gases compared to CO 2 over a specific time period.

Carbon Dioxide

Union of Concerned Scientists

SEPTEMBER 30, 2024

For example, inclusion of a non-chemical stressor—higher daily temperatures—was considered in the scientific document used to support the ozone standard , since there is evidence that exposure to higher daily temperatures together with ozone exposure is associated with higher mortality.

Air Pollution

Union of Concerned Scientists

JULY 9, 2024

To explore a small piece of what is at stake, let’s take a quick look at some of the rules currently under review at the EPA: Air emission reporting requirements If finalized and implemented, this rule will improve the way air pollution emissions are estimated and collected by the EPA.

Toxic Substances Control Act

Union of Concerned Scientists

MAY 4, 2023

Trucks and buses on California’s roads and highways are responsible for the majority of lung-damaging fine particulate and ozone-forming nitrogen oxide emissions, and a sizable amount of climate-warming greenhouse gas emissions as well.

Nitrogen Oxides

Union of Concerned Scientists

SEPTEMBER 17, 2024

Medium- and heavy-duty vehicles (MHDVs), like the big rigs on our highways and the vans that deliver our packages, make up just over 1 in 10 of the vehicles on our roads, but are responsible for over half of ozone-forming nitrogen oxide pollution and lung-damaging fine particulate pollution from on-road vehicles.

Electricity

Real Climate

SEPTEMBER 26, 2022

A second set of climate model simulations can be run with all of the factors we think of as important – the natural drivers of course, but also the anthropogenic changes (greenhouse gas changes, air pollution, ozone depletion, irrigation, land use change etc.).

Climate Change

PA Environment Daily

MARCH 11, 2022

The burning of transportation fuels, such as gasoline and diesel, is a substantial source of air pollution. ChargEVC-PA noted the Commission has already taken some steps to promote EV adoption.

Electricity

PA Environment Daily

SEPTEMBER 22, 2022

The study-- Hazardous Air Pollutants In Transmission Pipeline Natural Gas: An Analytic Assessment -- was accepted for publication in Environmental Research Letters journal September 16. blowdowns and blowouts), which we now know not only contains methane, but also Hazardous Air Pollutants and other chemicals.

Air Pollution

PA Environment Daily

JANUARY 21, 2022

million in Alternative Fuel Incentive Grants (AFIGs) to 18 cleaner fuel transportation projects statewide that will reduce greenhouse gas emissions and other air pollutants. Transportation generates 47 percent of nitrogen oxide emissions in Pennsylvania, contributing to the formation of ground-level ozone.

Nitrogen Oxides

Washington Nature

OCTOBER 25, 2022

1 allowance = 1 metric ton of greenhouse gas (GHG) emissions. A key critique of California's Cap & Trade program has been that it hasn’t reduced health-harming criteria pollutants , including carbon monoxide, lead, nitrogen dioxide, ozone, sulfur dioxide, and particulates. What are allowances + offsets?

Carbon Monoxide

PA Environment Daily

FEBRUARY 28, 2023

Getting more zero- and low-emission vehicles on the road in Pennsylvania helps reduce harmful air pollutants, including nitrogen oxides, carbon monoxide, particulate matter, and volatile organic compounds. It also helps lower the level of carbon dioxide, one of the greenhouse gases heating up the climate, in the air.

Nitrogen Oxides

Greenbuilding Law

JULY 9, 2023

This makes methane reduction crucial for addressing the urgency of climate change and buying time for the development and implementation of longer term greenhouse gas strategies. Co Benefits for Human Health : Methane is a key precursor of tropospheric ozone (ground level), a harmful air pollutant.

Climate Change

PA Environment Daily

AUGUST 31, 2023

Getting more zero- and low-emission vehicles on the road in Pennsylvania helps reduce harmful air pollutants, including nitrogen oxides, carbon monoxide, particulate matter, and volatile organic compounds. Gasoline and diesel vehicles generate 47 percent of nitrogen oxides emissions in Pennsylvania, contributing to ground-level ozone.

Nitrogen Oxides

PA Environment Daily

MARCH 8, 2023

Despite these claims, burning waste coal is still just burning fossil fuel and results in the emissions of significant amounts of air pollution including ozone precursors, fine particulates, acid gasses, heavy metals, and vast amounts of carbon pollution.

Nuclear Power

PA Environment Daily

APRIL 25, 2023

Despite these claims, burning waste coal is still just burning fossil fuel and results in the emissions of significant amounts of air pollution including ozone precursors, fine particulates, acid gasses, heavy metals, and vast amounts of carbon pollution.

Climate Change

Environmental Science

SEPTEMBER 7, 2018

For example, the ongoing debate over the impact of certain pesticides in agriculture , greenhouse gas emissions are often a battle between the science and industry's attempts to muddy the science and government lobbying to roll back legislation (2). Air emissions : Any gas emitted into the atmosphere from industrial or commercial activity.

Government

Vermont Law

SEPTEMBER 7, 2016

to help reduce greenhouse gas emissions. Air pollution generally has many proven. including urban photochemical smog, acid rain and increased tropospheric ozone, and climate change at the local, regional, and global level respectively. Air pollution also. One option is to engage the. free market.

Paris Agreement

Science & Climate

APRIL 22, 2021

Transportation is the largest source of greenhouse gas emissions in California. Health: Transportation is a major cause of local air pollution, as well as climate change. Particulate matter harms lungs and hearts, while nitrogen oxide compounds contribute to ozone pollution and other health impacts.

Fossil Fuels

Vermont Law

JANUARY 18, 2016

the UHIE occurs in metropolitan areas and “can affect communities by increasing summertime peak energy demand, air conditioning costs, air pollution and greenhouse gas emissions, heat-related illness, mortality, and water quality.”. for example, allows both open-air and greenhouse rooftop farming.

Climate Change

Law Columbia

JULY 6, 2017

These potential intervenors alleged that the additional emissions during the stay period would harm their interest in protecting their residents from the effects of air pollution and climate change. California Supreme Court Denied Petitions to Review Ruling That Upheld Cap-and-Trade Program.

2017

Union of Concerned Scientists

OCTOBER 13, 2022

The Advanced Clean Fleets (ACF) rule has the potential to significantly reduce climate-warming greenhouse gas (GHG) emissions as well as harmful air pollutants like fine particulates (PM2.5) A lower threshold would bring more reductions in air pollution sooner for the communities who need it most.

Electricity

Breezometer

OCTOBER 31, 2021

In the presence of heat and sunlight, chemical emissions from cars and factories react to form ozone (learn more here )., a harmful pollutant. As average temperatures rise, ozone levels accelerate. Repeated and excessive traffic pollution and poor air quality were determined to be linked to Ella's worsening asthma.

Air Pollution

Legal Planet

AUGUST 22, 2023

States and local air quality regulators have the legal authority to set particulate matter (PM), ozone, and nitrogen oxides (NOx) emissions standards and adopt regulations for these pollutants when they are already in attainment of the national ambient air quality standards ( NAAQS ) set by the U.S.

Regulations

Union of Concerned Scientists

APRIL 19, 2023

These trucks, which move shipping containers and goods from ports and railyards, are among the dirtiest on the road and are a primary source of air pollution in disproportionately impacted communities. pollution from vehicles. After 2036, all new MHDVs sold in California will be electric. There are more than 1.8

Nitrogen Oxides

Legal Planet

AUGUST 24, 2023

At the high temperatures in internal combustion engines, some of the nitrogen in the air actually burns, resulting in the formation NO or NO 2 , which are collectively called NOx. NOx plays a role in forming ground level ozone and final particulates (PM2.5), both of which are human health hazards. gpm NOx standard.

Ground-Level Ozone

Smith Enviorment

DECEMBER 19, 2023

The legislature put two provisions in the Appropriations Act of 2023 (House Bill 259) to prevent state agencies from adopting rules intended to reduce emissions of greenhouse gasses such as carbon dioxide (CO2) in the state. Other air quality provisions expedite permitting and construction of new or expanded sources of air pollutants.

2023

Environmental News Bits

MARCH 3, 2022

Climate researchers are learning that warming temperatures and heat waves resulting from greenhouse gas (GHG) emissions could adversely affect air quality in the United States and increase deaths from air pollution exposure. Read the full story from U.S. This effect is referred to as the “climate penalty.”

Ozone

Union of Concerned Scientists

APRIL 27, 2023

Rapid, deep cuts to fossil fuel use are necessary to address the climate crisis The power sector is second only to the transportation sector in terms of total US greenhouse gas emissions, making up about a quarter of overall emissions. It must not respond by watering the protections down based on industry disinformation.

Fossil Fuels

PA Environment Daily

MARCH 15, 2023

Methane is a potent greenhouse gas 80 times more powerful than carbon dioxide for the first twenty years that it remains in the atmosphere. Methane pollution is also responsible for more than 25 percent of the climate change Pennsylvania experiences today.

Natural Gas

Breezometer

JANUARY 26, 2022

Air Pollution - Under a high greenhouse gas scenario, premature mortality attributed to climate change in 2030 could reach 3,340 for ozone-related deaths and 55,600 for PM 2.5. Climate change experts predict drastic changes in the next decades: Wildfires - An increase of 1° Celsius (1.8°

Climate Change

PA Environment Daily

JULY 20, 2021

Conventional vehicles are a leading source of air pollutants that affect human health. Transportation is also the largest source of greenhouse gas emissions in the United States. Nearly 154,000 of those jobs would stem from incentives that make it less expensive to purchase medium- and heavy-duty EVs like trucks and buses.

Ground-Level Ozone

PA Environment Daily

NOVEMBER 11, 2022

Environmental Protection Agency announced it is strengthening its proposed standards to cut methane and other harmful air pollution. The updates would provide more comprehensive requirements to reduce climate and health-harming air pollution, including from hundreds of thousands of existing oil and gas sources nationwide.

Natural Gas