Areas scarred by the Eaton Fire are at “high to very high risk” of debris flows this week. How do they happen? What is being done to prepare for storms?

In some areas, hazards have surged. Buildings in the highest severity zones will be subject to the strictest fire-resiliency rules.

Yosemite National Park’s Badger Pass will not open this season due to lack of snow. Although snow is forecasted for the ski area this week, staff ...

Tracking and predicting sea level rise involves more than measuring the height of our oceans: Land along coastlines also ...

The rise of Google Maps mimics many of the scrappy origin tale tropes that are littered throughout the Bay Area.