A view from Twin Peaks in San Francisco — at 8 a.m. on Sept. 9 — the day the skies turned orange over the Bay Area. Photo by Charles Russo. For the past four years, autumn in California has ...

While electric vehicles have become a cornerstone of the global energy transition, new research led by Princeton University has demonstrated that refining the critical minerals needed for electric ...

How bad is the air? The South Coast Air Quality Management District monitors particulates in our region. SCAQMD says much of ...

Thousands of people have been forced to flee after "unprecedented" Palisades, Eaton and Hurst fires ravage Los Angeles County ...

Kilroot Power Station was releasing almost half a million kilograms of particulates a year at the start of this century, a ...

The Valley saw record-breaking smoke levels over the New Year’s holiday.

At approximately 2:20 a.m. Monday, the Kīlauea volcano began erupting in Hawaiʻi Volcanoes National Park. According to the ...

The study - which includes researchers from Beijing's Peking University and Yale University in the US - was based on measurements of sulphur dioxide, nitrogen dioxide and particulates smaller than ...