Sequoia National Park's Giant Forest unscathed by wildfire

The ancient massive trees of Sequoia National Park's famed Giant Forest were unscathed Tuesday even though a wildfire has been burning near them on the western side of California's Sierra Nevada for nearly two weeks.

California firefighters chase new fires ignited by lightning

Firefighters scrambled Friday to quash fires ignited by lightning as thunderstorms with mostly small but welcome amounts of rain rumbled across drought-stricken Northern California, where forests have been burning for weeks.

California wildfires at risk of sparking as wind blows in

A weather system approaching northwest California was expected to bring dry lightning and blustery winds by late Thursday, unleashing a risk of new wildfires as thousands of firefighters have been making headway against existing ...

California winds shifting as wildfire battles go on

California weather was heating up and winds were shifting Thursday as more than 14,000 firefighters battled wildfires up and down the state, including a major blaze they hoped to keep out of the Lake Tahoe resort region.

California wildfire flares but within line crews have built

California's largest wildfire so far this year was flaring up Friday but it was because the flames were chewing through unburned islands of vegetation within a perimeter that firefighters have built, authorities said.

Exploring quantum systems that don't find equilibrium

Some physical systems, especially in the quantum world, do not reach a stable equilibrium even after a long time. An ETH researcher has now found an elegant explanation for this phenomenon.

Largest fire grows, forces evacuation of wildlife station

The nation's largest wildfire torched more dry forest in Oregon and forced the evacuation of a wildlife research station Monday as firefighters had to retreat from the flames for the ninth consecutive day due to erratic and ...

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