U.S. environmental groups say they are hiring lawyers and preparing for a major legal showdown with President Donald Trump's ...

The Clean Air Act (CAA) passed in 1970, enshrining the "right of Americans to breathable air" and empowering the n ...

The high court this week will hear arguments on whether opponents have standing to challenge the state’s right to set tough ...

Some restrictions prevent loosening of existing environmental standards for clean air and water. Other rules can be changed – ...

The first Earth Day was celebrated in 1970, making this year's festivities the 55th annual festival. For the first Earth Day, ...

The Trump administration has granted nearly 70 coal-fired power plants a two-year exemption from federal requirements to ...

Following an order from President Donald Trump, the Environmental Protection Agency gave dozens of coal plants an extra two ...

Cigar bars are legal in many states, and a supporter representing the hospitality industry said the lack of an exemption here ...

Earth Day is celebrated on April 22 each year, promoting environmental protection and awareness since 1970.