What's the biggest source of greenhouse gas emissions in the U.S.? About 30% of carbon dioxide emissions comes from the electricity sector, according to the EPA's website. The largest share – 35 ...

The EPA requires gas retailers in Maricopa County and portions of Pinal and Yavapai Counties to sell these summer blends from June 1 through Sept. 30. The purpose of using different types of fuel ...

EPA is also replacing the Obama Clean Power Plan that the Supreme Court struck down with a rule requiring that coal plants and new gas-fired plants adopt costly and unproven carbon-capture ...

Emissions from the Naughton coal-fired power plant in Kemmerer, Wyo. The Environmental Protection Agency is cracking down on pollution from power plants nationwide. (Kim Raff for The Washington ...

The new rules regulate gas emissions for existing coal and gas ... inclusive manner, the EPA is cutting pollution while ensuring that power companies can make smart investments and continue ...

TUCSON, Ariz. (KVOA) — Governor Katie Hobbs and the Arizona Department of Environmental Quality just got the thumbs up from the Environmental Protection Agency for a waiver on cleaner burning ...

On April 25, 2024, the EPA announced, as part of a suite of four rules for fossil fuel-fired power plants, its final greenhouse gas (GHG) standards for power plants—imposing stringent new ...

The coal-fired Homer City Generating Station, which closed in 2023. The EPA finalized a suite of pollution rules for natural gas and coal-fired power plants in the U.S. Thursday. The new rules ...

Using the nitrogen-15 isotopic technique, scientists can identify the source of nitrous oxide production, which is important to find ways to reduce the emission of the gas. The carbon-13 stable ...

Horizontal lines on an HP laptop screen can arise from various causes, including loose or damaged video cables, outdated graphics drivers, or physical damage to the screen itself. You can fix ...