For decades, big-box retailers have evaded federal regulation of the pollution their operations generate. But a new air emission rule in Southern California could become a model for state controls.

Turning off power is a last-ditch strategy for utilities to reduce the risk that their systems could spark wildfires. In most states, deciding whether to take that step is up to utilities.

The new rule isn’t a mandate for electric vehicles, but it will sharply increase their market share over the coming decade.

California is considering a controversial proposal for utilities to charge customers for electricity based partly on household income. Two scholars explain how this approach could benefit everyone.

Nano-enabled pesticides could pose huge risks and they aren’t being regulated effectively enough yet.

Reducing particle pollution can save thousands of lives, but states need more data to inform better controls. An atmospheric scientist explains what data and actions are needed.

Most people don’t know what these labels really mean − and advertisers take advantage of that fact.

Synthetic chemicals found in ski wax have been found in the snow and soil on ski slopes and could pose a toxic threat to the environment.

On Feb. 7, 2024, the EPA strengthened the federal limit for annual levels of fine particulate air pollution, or PM2.5. Many serious health effects have been linked to PM2.5 exposure.

Although most Americans believe dietary supplements are safe, these products often make health claims that are unproven or downright false.