environment

As innocuous as it may seem, the common household air conditioner is a significant contributor to climate change.

Coastal urban centers around the world are urgently looking for new, sustainable water sources as their local supplies become less reliable. In the U.S., the issue is especially pressing in California, which is coping with a record-setting, multidecadal drought.

Along with food waste, food packaging is a significant source of pollution, generating approximately half of the packaging waste in the United States.

A new study mapping methane pollution across five oil and gas production basins in states including Colorado found a small number of sites account for a disproportionately high level of overall pollution.

California Governor Gavin Newsom signed a package of new climate initiatives into law  Friday, touting them as aggressive moves to address pollution and accelerate a clean energy transition in the Golden State.

Colorado Governor Jared Polis' administration is opposing a federal action triggered by the Denver metro area's ozone levels that would likely mean higher gas prices.

What is the Count Us In campaign all about and how does it differ from other efforts to help us rein in carbon emissions?

South Dakota regulators could get an updated map proposal this fall from a company behind a multistate pipeline for underground storage of carbon dioxide.

The 1960s and 1970s were a golden age of infrastructure development in the U.S., with the expansion of the interstate system and widespread construction of new water treatment, wastewater and flood control systems reflecting national priorities in public health and national defense. But infrastructure requires maintenance, and, eventually, it has to be replaced.

The federal government is taking new steps to protect people from "forever chemicals."