Official: Wildfire near Lake Tahoe largely kept from towns

The huge wildfire near the Lake Tahoe resort region was about half contained Tuesday, with the head of California's firefighting agency saying crews largely have been able to keep flames away from populated areas.

California wildfire near Lake Tahoe nearly half contained

The huge wildfire near the Lake Tahoe resort region was about half contained Tuesday, with the head of California's firefighting agency saying crews largely have been able to keep flames away from populated areas.

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.

Simulating nuclear cloud rise anywhere, anytime

For decades, understanding the behavior of a nuclear mushroom cloud was done with careful analysis of observations made during the testing era. Old photos, outdated film and incomplete weather data made precise calculations ...

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