Its trains are attracting more riders, but billions in debt and the cost of expansion show why passenger rail still needs ...

All the claims on the 1.2 million acres of newly opened land appear to have been filed by small-scale miners in Utah with an ...

More than a year after the law was signed, the state has made little progress and appears poised to miss a December deadline ...

As researchers around the world begin work on the next U.N. climate assessment, fears are growing that the Trump ...

Some residents oppose renewables. Others see property rights — and the chance to benefit from energy developments on their ...

Last year was a tough time for anyone who studies climate change for a living. The United States, once respected around the world for its sprawling investments in science, suddenly reversed course.

The U.S. ships millions of barrels of diesel fuel overseas each day even as Americans face unprecedented prices at home.

The current El Niño has also been given an array of eye-catching descriptors. When Jeffrey Shaman, a climatologist at Columbia Climate School, heard the phrase “super El Niño” for the first time ...

Senators are looking toward the Capitol doors as they prepare to head home and campaign for the midterms. Meanwhile, a group of them has been scrambling to reach a deal that some analysts believe is ...

While tech oligarchs grandstand about the existential danger AI superintelligence poses to humanity, former Environmental ...