The Trump administration is also ending federal requirements that push car makers to produce more low-emission models.Start ...

First-week orders could undermine progress on clean energy investments, pollute the air and add few benefits to the economy, ...

Northern Arizona is famous for its aspen trees, and a multi-decade study looks into how they’re being affected by climate ...

Most climate scientists are certain that global warming has played a critical role in the California wildfires, despite political posturing.

A Republican wants to change Arizona law to ban “geoengineering” in the state aimed at addressing the rapid effects of ...