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2018 Another Dry Year for California

As the Golden State moves into 2019, it will close the book on an abnormally dry year with hopes that a few rain storms can stave off the prospect of another drought. Two consecutive years of devastating wildfires killing dozens of residents, causing billions in property damage and reducing millions of acres to ash has demonstrated the effects of the prolonged drought stretching from 2012 until 2017. Storms finally brought much-needed precipitation in 2017, replenishing reservoirs and aquifers, but the moisture content in the forest vegetation and the swathes of dead trees in the Sierra Nevada attest to the consequences of the sustained dry weather.

Winter Is Shrinking, Scripps Study Finds, Posing New Fire, Water Risks

Across the mountains of the West, the landscape of winter is changing. Deep snowpacks that held fast through winter, then melted in a torrent each spring, are instead seeping away earlier in the year. The period of winter weather is shrinking, too, with autumn lasting longer and spring starting earlier. The findings by Amato Evan, a professor of atmospheric and climate science with Scripps Institution of Oceanography, show changes to Western hydrology that could jeopardize water resources, flood control, fire management and winter recreation.

California’s Droughts Hurt Fight Against Climate Change. Study Tells Us Why

Recent droughts across the West have belted drinking-water supplies, withered crops and fanned deadly wildfires. They’ve also squeezed hydroelectric facilities, with the less obvious side effect of hampering efforts to reduce greenhouse gas pollution. A new study out of Stanford University finds that 10 percent of the total carbon dioxide spewed from California, Oregon, Washington and Idaho for power generation this century is the result of states turning to fossil fuels when water was too sparse to spin electrical turbines at dams.

Is Valley Drought Back? 2018 Ends As A Drier-Than-Normal Year

In a state where dead trees in the Sierra Nevada still stand as a testament to a severe seven-year stretch of dry weather that ended in 2017, some nervously wonder whether the state may slide back into a drought. In the eastern Pacific Ocean near the equator, ocean temperatures are pretty stable. That means there’s no El Niño or La Niña sitting out there to help drive a chain of storms to dump rainfall on the Valley and snow in the Sierra Nevada as the calendar closes on 2018.

OPINION: State’s New Voluntary Water Agreements Are A Good Deal For Delta Fish, Valley Farms

Over the past three years, the State Water Resources Control Board has conducted a public process to increase the water flowing to the Sacramento-San Joaquin Rivers Delta with the intent of improving declining fish populations. However, an increase in river flow means a reduction in supplies for Californians, who are dependent on them for their lives and livelihoods. There are two approaches to this: painful, mandatory cuts to water supplies or voluntary agreements among water users to achieve specific goals in the Bay-Delta Water Quality Control Plan update.

OPINION: What New Water Deals Mean And What Work Is Left To Be Done

California’s State Water Project and federal Central Valley Project span several northern watersheds, converging in the Sacramento-San Joaquin Delta, where their pumping stations operate a stone’s throw away from one another. They coordinate their operations on a daily basis and have done so for decades. Earlier this month, the California Department of Water Resources signed three agreements updating how the state and federal projects share  environmental and financial obligations associated with their operations.

Trump’s Rule A Wild Card For Western Water Supplies

The Trump administration’s proposal to limit the Clean Water Act’s reach over wetlands and waterways would likely complicate efforts to protect and manage the parched West’s most important and imperiled source of water. At risk: the Colorado River — water provider for 40 million people and vast swaths of cropland — which is already reeling from a crippling drought and rising water demands. Trump’s proposed waters of the U.S. (WOTUS) rule would strip federal protections for ephemeral streams that only flow after rain or snow and wetlands without continuous surface water connections to waterways. That’s particularly important in the Colorado River Basin.

DWR Releases Draft California Water Plan Update 2018 For Public Review

The Department of Water Resources (DWR) yesterday released the Public Review Draft of the California Water Plan Update 2018. The draft plan presents a vision for greater collaboration in water management, with a focus on achieving long-term sustainability and improvements to public health, the economy, and the environment. The California Water Plan is the state’s comprehensive strategic plan for managing and developing water resources sustainably. DWR publishes a plan update every five years, as directed by California Water Code.

OPINION: A Long-Term Solution To California’s Water Woes

After years of drought and the recent devastating wildfires, Californians have been frequently reminded of water’s key role in everything from subduing the tragic blazes to its continuous uses for key agriculture, residential and commercial needs across the state. In the past, California has battled shortages and water challenges by rationing. But Israel has shown there may be a better long-term solution. Like California, Israel has an arid climate. Unlike the Golden State, Israel has solved its water shortage by commissioning a series of privately built and operated seawater desalination plants.

Warming Winters And Dwindling Sierra Nevada Snowpack Will Squeeze Water Resources In Parts Of California, NOAA Reports

Snowmelt from the Sierra Nevada Mountains provides roughly 75 percent of California’s agricultural water, and 60 percent of Southern California’s water resources. Warm winters can cause snow droughts in the Sierra Nevada, both by nudging precipitation in the direction of rainfall rather than snowfall, and by melting snow sooner. A new study by researchers at the University of California, Irvine, uses historical records and modeling to understand how the Sierra Nevada snowpack may respond to rising temperatures. Based on the new study, this figure shows how the snowpack could fare in the Sierra Nevada with a 1°C (1.8°F) increase in average winter air temperature.