Union of Concerned Scientists

NOVEMBER 3, 2022

Primarily, these have focused on the 2007 EPA regulations, which were the first step in the phase-in of diesel engine standards meant to cut particulate emissions by more than 80 percent and smog-forming nitrogen oxides (NO X ) emissions by 90 percent. Source: ERM 2022 ). Source: ERM 2022 ).

2007 272

2007 Nitrogen Oxides Regulations 2004 272

Union of Concerned Scientists

NOVEMBER 16, 2023

The legislation committed nearly $400 billion to support, among other things, wind and solar power, battery storage, electric vehicles, and other clean energy technologies that will make a significant dent in US heat-trapping emissions. Last year, Congress passed the most ambitious climate bill ever enacted, the Inflation Reduction Act.

Carbon Emissions 311

Carbon Emissions Fossil Fuels Clean Energy 2030 311

Union of Concerned Scientists

OCTOBER 4, 2023

While it might seem strange to some that two different government agencies are releasing new rules at the same time for the same set of vehicles, below I explain the importance of both programs and why we need NHTSA to do better. On the other hand, NHTSA’s mandate is to cut petroleum use, which puts the focus on alternative fuels to gasoline.

Electricity 258

Electricity Clean Air Act Carbon Dioxide 2027 258

Union of Concerned Scientists

JUNE 14, 2023

EPA US Supreme Court decision in 2007 and the EPA’s follow-on Endangerment Finding and Cause or Contribute Finding in 2009, which ultimately set the stage for the agency to not only have the authority—but also the obligation—to regulate power plant carbon emissions. But the calculus changes when it comes to compliance.

Fossil Fuels 222

Fossil Fuels Carbon Emissions Nitrogen Oxides Clean Air Act 222