Before 2021, Portland’s hottest day on record was 107°F set back in 1981. The heat wave, also caused by and called a “heat ...

Even when Mother Nature turns nasty, the weather extremes carry a sense of awesome beauty. About 60 scientists this spring ...

Climate change has inexorably stacked the deck in favor of bigger and more intense fires across the American West over the past few decades, science has incontrovertibly shown. Increasing heat ...

Manganese (Mn) exists as Mn(II), Mn(III), or Mn(IV) in soils, and the Mn oxidation state controls the roles of Mn in numerous environmental processes. However, the variations of Mn oxidation states ...