Readers have asked about Arizona's cleaner-burning gasoline formulas. Do they improve air quality, health and greenhouse gas ...

Visit the incredible remnants of a village in the Arizona desert, a national monument that demonstrates what life was like ...

Far off the beaten path, the adventurous can find an Arizona oasis that offers a challenging hike, pristine water to relax in ...

Paul Skenes dominó durante más de seis entradas sin permitir carreras, el dominicano O’Neil Cruz conectó un jonrón de dos ...

More than $14 billion in clean energy investments in the U.S. have been canceled or delayed this year, including an Arizona ...

Bryan Reynolds sumó cuatro hits, incluyendo un jonrón de tres carreras que puso a los Piratas adelante en el octavo inning, y Pittsburgh revirtió un ...

University of Arizona and University of Washington provide ... As greenhouse gases from burning fossil fuels and from other human activities accumulate in the atmosphere, they trap extra heat ...

Around 66 million years ago, a six-mile-wide asteroid hit Earth, triggering the extinction of three-quarters of all living ...

The microgrid, which was developed in partnership with Iberdola Spain, includes nearly 1,000 solar panels, five EV charging ...

The international team involved researchers from the universities of Oxford, Pittsburgh, Aberdeen, Arizona ... "Dozens of T. rex fossils have been unearthed in North America but our findings ...

Energy Secretary Chris Wright said the Biden DOE had "failed to conduct a thorough financial review before signing away ...

Natural gas has become a go-to fuel for power plants from coast to coast, sometimes replacing dirtier coal-fired plants and, ...