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California

Plot showing the average number of shallow earthquakes near Parkfield, California, from 2006 to 2014
Posted inEditors' Highlights

Why are Earthquakes on the San Andreas Seasonally Modulated?

by Victor Tsai 19 February 20219 February 2022

There is growing evidence that some earthquakes occur seasonally but also that water loading cannot explain these observations.

A blue reservoir lake surrounded by yellow hills with spotty dark green tree coverage flows into a hydroelectric dam.
Posted inNews

Adaptation Can Compound Climate Change Impacts on Energy and Water

Kate Wheeling, freelance science writer by Kate Wheeling 15 February 20212 September 2022

Researchers have created a framework to trace the impacts of climate change and adaptation across energy and water systems in California.

View of Long Valley Caldera in California with snow-covered mountains in the background
Posted inResearch Spotlights

How Heavy Rain and Drought Influence California Crustal Strain

Kate Wheeling, freelance science writer by Kate Wheeling 27 January 20216 October 2021

New research using continuous GPS data reveals how multiyear precipitation patterns can amplify the effects of hydrological loading on crustal deformation.

View toward the sky from beneath Oregon white oak trees
Posted inResearch Spotlights

How Some Trees Survive the Summer Dry Season

by Terri Cook 3 December 20203 December 2021

Oak trees in California seasonally tap moisture in unsaturated soil and weathered bedrock, even when the groundwater table is within reach of their roots.

Smoke billows in the distance from a mountain near Ukiah, Calif., as motorists drive down a street in the foreground.
Posted inResearch Spotlights

“Thirstier” Atmosphere Will Increase Wildfire Risk out West

Sarah Stanley, Science Writer by Sarah Stanley 2 December 202022 February 2023

New climate projections could inform long-term wildfire and water resources management strategies in California and Nevada.

Kelp in Monterey Bay, Calif., is seen from below the water surface
Posted inResearch Spotlights

Acidifying Oceans Could Get Help from Kelp

Elizabeth Thompson by Elizabeth Thompson 30 November 202014 December 2023

Forests of fast-growing kelp influence the chemistry of the water in which they live. A new study evaluates their potential to ameliorate ocean acidification in sensitive coastal ecosystems.

Plot showing average temperature change over California caused by reductions in airborne particle concentrations
Posted inEditors' Highlights

Comparing Impacts of CO2 and Particle Emission Reductions

by Lynn Russell 11 November 202014 February 2023

Black carbon contained in airborne particles is often cited as a major factor warming the climate, but how much can California reduce climate change through reducing airborne particle concentrations?

Small conifers grow along the edge of an open grassy meadow along the John Muir Trail.
Posted inFeatures

Traversing the High Sierra on the People’s Paths

Mary Caperton Morton, Science Writer by Mary Caperton Morton 2 November 20203 November 2022

Living in Geologic Time: Backpacking through the past, present, and future of fire on the John Muir Trail.

A USGS research team from the Geology, Minerals, Energy, and Geophysics Science Center takes measurements of hydrologic properties of burned and unburned soils in the LNU Lightning Complex Fire area in Napa County, Calif., in early October.
Posted inNews

Biggest Risk to Surface Water After a Wildfire? It’s Complicated

Megan Sever, Science Writer by Megan Sever 20 October 20206 January 2022

Whether you’re considering short-term or long-term changes to water quality after a wildfire, scientists agree that sedimentation is a big concern.

Santa Barbara Channel is seen in the foreground off the coast of Ventura, Calif.
Posted inResearch Spotlights

Southern California’s Crustal Motion Tells of Earthquake Hazards

Aaron Sidder, freelance science writer by Aaron Sidder 9 October 20206 October 2021

Precise measurements of the Earth’s vertical surface motion help to elucidate the hazards of faults in an earthquake-prone region.

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