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Ask a Scientist: UCS Transportation Program Adds Equitable Mobility to its Portfolio

Union of Concerned Scientists

In 1963, a typical car—which ran on leaded gasoline without pollution control devices— emitted 520 pounds of hydrocarbons, 1,700 pounds of carbon monoxide, and 90 pounds of nitrogen oxide every 10,000 miles traveled. More than 20,000 Americans died prematurely in 2015 from tailpipe emissions, according to a 2019 study.

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The State of the Air in 2024? Not Great

Union of Concerned Scientists

I moved to Merced in 2015 to study for my PhD, and I found a place I could call home. come from reactions of industrial pollutants (nitrogen oxides and sulfur oxides) with sunlight and unfinished fuel combustion. Why do I choose to stay in a place with such bad air quality?

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EPA’s Denial of Louisiana’s Revised SIP

The Energy Law Blog

On December 7, 2023, the Environmental Protection Agency (EPA) disapproved the state implementation plan (SIP) revisions for the Baton Rouge ozone nonattainment area that Louisiana set forth in response to EPA’s 2015 SIP Call rule. To comply with the 2015 SIP Call rule, Louisiana had proposed revising its SIP by removing LAC 33:III.2201.C.8,

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Don’t Believe the Lies: Five Facts to Consider as the UN’s COP27 Comes to a Close

Union of Concerned Scientists

of the observed rise in atmospheric carbon dioxide and 52 percent of the rise in global average temperatures between 1880 and 2015. It can, and must, start now to meet the 2015 Paris Agreement goal of limiting global warming to 1.5 Data on the major carbon producers’ emissions have been published since 2014.

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Will EPA Follow the Science and Protect Us from Ozone Pollution?

Union of Concerned Scientists

Unlike other major air pollutants, ground-level ozone is not emitted directly into the air but is created by chemical reactions between nitrogen oxides and volatile organic compounds, meaning that ozone pollution is tied to sources that emit these precursor chemicals, such as heavy duty vehicles.

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Ask a Scientist: Top Takeaways from the New EPA Carbon Pollution Rules

Union of Concerned Scientists

In 2015, the EPA issued the Clean Power Plan to reduce carbon pollution from power plants, which at the time were the largest source of heat-trapping emissions in the country. It sets a framework for states and utilities across the country to fully reckon with their power plants’ carbon emissions. billion to $5.9 billion.

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Ask a Scientist: The US Has to Do More to Meet Its Carbon Emissions Reduction Goals

Union of Concerned Scientists

Under the 2015 Paris Agreement, the United States voluntarily pledged to reduce its global warming emissions at least 50 percent below their 2005 levels by the end of this decade and reach net-zero emissions no later than 2050.