The Portland Timbers and Seattle Sounders renew one of Major League Soccer’s fiercest rivalries tonight as the Cascadia Derby returns to Providence Park. Regional bragging rights are always on the ...

Many trout anglers let their catch swim free after netting it. But temperature-stressed rainbow or cutthroat trout can die if they're out of water even briefly.

A study last year found “river heat waves" are increasingly happening in snow-dominated areas such as the northern U.S. and ...