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Hydropower Bill Would Sabotage California’s Clean Energy Mandate, Critics Say

The Don Pedro hydropower project, just west of Yosemite National Park, has been churning out carbon-free electricity for nearly a century. As the Tuolumne River flows from the Sierra Nevada to the Central Valley, it passes through Don Pedro Dam, spinning four turbine generators. None of the electricity is counted toward California’s push for more renewable energy on its power grid. A new bill advanced by state lawmakers last week would change that — and it’s being opposed by environmental groups, who say it would undermine the state’s landmark clean energy law by limiting the need to build solar farms and wind turbines.

How NASA Is Taking The Guesswork Out Of Measuring California’s Snowpack

To better measure the water in our snow, California is sending sharper eyes up into the sky. Two sensors peer out from a turboprop aircraft, soaring from Mammoth Yosemite Airport over the white Sierra Nevada – collecting data that tells us almost exactly how much water we’ll have this summer. Last week’s findings: 1.1 million acre-feet, or 350 billion gallons of water in the mountain snow of Yosemite’s Tuolumne River basin, which flows into Hetch Hetchy Reservoir and provides water to major Central Valley irrigation districts, San Francisco and several other Bay Area communities.

OPINION: To Address Climate Threat, California Must Lead The Way On Green Bonds

We celebrated Earth Day last week, but climate change threatens our quality of life and poses material risk to our communities every day. A recent article by the Federal Reserve Bank of San Francisco points out that climate change also poses a real threat to our economy. Similarly, other reports identify tens of billions of dollars in infrastructure needs in California. They also say new infrastructure must be resilient, adaptable and responsive to the threat of climate change.

Inside California’s Fight Against Pollution

Mary Nichols, the woman who for more than 15 years has led the fight to improve California’s poor air quality, says she’s not a fan of a nickname she’s acquired: Queen of Green. “I actually hate the title,” Nichols told The Hill during a recent phone interview. “We live in what is intended to be a representative democracy, so queens are not our thing.” But Nichols, who has twice headed the California Air Resources Board (CARB) and more recently has led the state in its battle against the Trump administration’s rollback of key car emissions regulations, has nevertheless become a reigning environmental figure.

Study Estimates 15,000 Cancer Cases Could Stem From Chemicals In California Tap Water

A new study finds that drinking tap water in California over the course of a lifetime could increase the risk of cancer. Researchers from the environmental advocacy group Environmental Working Group estimated that the contaminants found in public water systems in California could contribute to about 15,500 cancer cases there over the course of a lifetime. These contaminants include chemicals such as arsenic, hexavalent chromium and radioactive elements such as uranium and radium. The study was published Tuesday in the journal Environmental Health.

Yuba Water Agency, DWR Launch Research To Enhance Reservoir Operations

Yuba Water Agency launched an initiative with the California Department of Water Resources (DWR) and University of California San Diego’s Scripps Institution of Oceanography to improve storm and runoff forecasting, and significantly reduce flood risk though enhanced operations of New Bullards Bar and Oroville dams. This research will supply information needed for the U.S. Army Corps of Engineers to update the 1970’s-era water control manuals, which dictate the storm-season operations of both reservoirs. Yuba Water’s goal is to have a new water control manual approved about the same time the agency completes construction of a new, planned secondary spillway at its New Bullards Bar Dam, estimated for completion in 2024.

Few Details In Newsom’s Water Policy Directive

Gov. Gavin Newsom on Monday ordered key state agencies to develop a blueprint for meeting California’s 21st-century water needs in the face of climate change. The executive order includes few details and doesn’t appear to set a dramatic new water course for the state. Rather, it reaffirms Newsom’s intentions to downsize the controversial twin tunnels project in the Sacramento-San Joaquin Delta, use voluntary agreements to meet new river flow requirements and provide clean drinking water to impoverished communities.

Gov. Newsom Issues Executive Order Demanding Drought-Climate Plan

Like many governors before him, Gov. Gavin Newsom is seeking to get his arms around California’s myriad water problems, issuing an executive order Monday that calls for his administration to do nothing less than ensure safe and sufficient water for the next century. The order directs state agencies to review and come up with plans to improve policies addressing such issues as California’s chronic water shortages, contaminated drinking water, unaffordable water rates, and the declining health of rivers and lakes.

Five Years Later, Effects Of Colorado River Pulse Flow Still Linger

From inside a small airplane, tracing the Colorado River along the Arizona-California border, it’s easy to see how it happened. As the river bends and weaves through the American Southwest, its contents are slowly drained. Concrete canals send water to millions of people in Phoenix and Tucson, Los Angeles and San Diego. Farms, ribbons of green contrasted against the desert’s shades of brown, line the waterway.

Cal Am Withdraws Appeal Of Desal Permit Denial

Monday evening California American Water announced it had decided to withdraw its appeal of the Marina city Planning Commission’s denial of a coastal development permit for the company’s proposed desalination project, specifically the intake slant wells and other related infrastructure. Cal Am announced it had been told by city officials its request for the mayor and two council members to recuse themselves due to alleged bias against the desal project would not be honored. The company will now appeal the commission’s denial directly to the Coastal Commission.