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The county's forests have provided shade, shelter and a connection to nature for thousands of years. But fire suppression, severe drought, insects and increasing carbon dioxide have put them under intense pressure, and they could disappear.

Hikers and nature lovers returned to Yosemite National Park's scenic valley Tuesday after a rare 20-day closure because of smoke from wildfires. Some said they didn't mind the hazy air that obscured scenic vistas; others came prepared with eye drops and face masks.

Federal officials named 27 of California's 58 counties a primary natural disaster area due to drought. San Diego was not listed.

The Scripps Institution of Oceanography at UC San Diego and the Desert Research Institute of Reno will split a$3 million, five-year grant from the National Oceanic and Atmospheric Administration to improve the ability of decision-makers to plan for hazards and extreme events, Scripps announced Thursday.

Heightened wildfire danger posed by ample dry vegetation and increasingly warm, arid weather in the San Diego area prompted Cal Fire to suspend all burn permits for local outdoor residential fires in unincorporated areas beginning Friday.

The federal government spends billions of dollars each year helping communities rebuild after disasters and to prevent future damage. But that money isn't always allocated to those who need it most.

The award-winning photographer tells the stories behind the profoundly moving images in her new book, Of Love & War — and confesses that she still gets nervous before a new assignment.

Climate change is increasing the frequency of rainstorms in many parts of the U.S., and those storms bring more rain. Many communities don't have the drainage systems needed to handle all the water.

A new study says unusual patterns of the polar jet stream circling the Northern Hemisphere may have led to dramatic weather in Europe and North America.

An analysis of nearly 90 studies finds that warming temperatures may alter where key crops grow across the state, which provides about two-thirds of America's produce.