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State Air Regulations Can Go Above and Beyond National Standards 

Legal Planet

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.

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Supreme Court Sidelines Science, Threatens Public Health: These Rules-in-Progress Show What’s at Stake

Union of Concerned Scientists

Hydrofluorocarbons (HFCs) were developed to replace a type of chemical that impacted the ozone layer in our upper atmosphere, but these replacements are potent greenhouse gases. When facilities emit less pollution, their regulations require less specific record-keeping and monitoring.

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Glossary of Greenhouse Gas Terms

Greenbuilding Law

With proposed federal regulation of greenhouse gas emissions by the Securities and Exchange Commission requiring GHG disclosure and new state statutes, including a new Maryland law that requires not only disclosure, but also a mandated reduction in GHG emissions, a greater appreciation of the subject of GHG appears in order.

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Delivery Vans are Going Electric: Where and Why

Union of Concerned Scientists

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.

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California Ready to Take Giant Leap Toward Zero-Emission Trucks

Union of Concerned Scientists

In late April, California air regulators are poised to pass one of the most meaningful regulations to reduce pollution from commercial trucks, vans, and buses. The Advanced Clean Fleets (ACF) rule, which I’ve blogged about in detail before, will phase out fossil-fueled trucks over the next several decades. There are more than 1.8

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The Problems with Liquefied Natural Gas

Ocean Conservancy

If we are to avert climate catastrophe, the shipping sector must immediately begin to eliminate the 1 billion-plus metric tons of greenhouse gases it emits every year. When the IMO’s regulation to cut SO x emissions went into effect in 2020, LNG became a growing alternative fuel choice for marine transportation.

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Protecting Public Health Is Complicated. But Science Can Help, and the Time Is Now.

Union of Concerned Scientists

It was a big step towards providing adequate health protections, but Environmental regulations need to look at people, not just pollutants—and the way to get there is by assessing cumulative impacts. But the requirements in the rule were developed considering that one carcinogen from that one type of facility.