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OPINION: State Law Recognizes Rivers And Groundwater Are Connected — Now What?

For years, Californians have mismanaged the aquifers that supply the state with about 40 percent of its water supplies. Declining water levels from over-pumping have left less water for agriculture, urban, and other uses in many areas of the state. But the problems do not stop with groundwater users. Groundwater and surface water are closely connected, so declining groundwater can reduce streamflow at critical times of the year, and can devastate rivers, streams, and wetlands.

Precipitation Whiplash And Climate Change Threaten California’s Freshwater

Imagine the snow in the Sierra Nevada mountains as a giant reservoir providing water for 23 million people throughout California. During droughts, this snow reserve shrinks, affecting water availability in the state. Researchers fear global warming will cause the Sierra Nevada snowpack to lose much of its freshwater by the end of the century, spelling trouble for water management throughout the state.

6 Charts From New Report Show How Much California’s Climate Has Already Changed

Warmer days — and nights. Rising sea levels. Less water available in summer. A report released Wednesday by state officials says climate change is affecting California’s ecosystem already in ways great and small. The document looks at 36 indicators that measure aspects of climate change, including human-influenced causes of climate change such as greenhouse gas emissions and the impact of the changes on people and wildlife.

Long Drought Makes Outlook For Tucson’s Share Of CAP Water Grim

Longer-range outlooks for Lake Mead and the Central Arizona Project are increasingly grim due to this year’s bad runoff, the U.S. Bureau of Reclamation said Wednesday. The result is that the bureau is pushing hard for states in both the Upper and Lower Basins of the Colorado River to reach agreement this year on drought planning to ease the pain of future shortages, after negotiations have so far failed.

Mexico, 2 US States Could See Colorado River Cutback In 2020

Mexico and the U.S. states of Arizona and Nevada face a better-than-even possibility of getting less water from the Colorado River in 2020 because of a persistent drought, water managers said Wednesday. The U.S. Bureau of Reclamation, which manages the river, released projections showing a 52 percent chance the river’s biggest reservoir, Lake Mead in Arizona and Nevada, will fall low enough in 2020 to trigger cutbacks under agreements governing the system.

Summer Just Got A Little Hotter: State Could Have You Using Your AC Less

The managers of California’s electrical grid warned Wednesday that the state is facing tight power supplies this summer, due in part to a drier winter that is reducing available hydro power. Some Californians could be forced to turn down their air conditioners, hold off on doing their laundry or make other sacrifices in the name of energy conservation.

 

Climate Change’s Alarming Impact

Bigger, more intense forest fires, longer droughts, warmer ocean temperatures and an ever shrinking snowpack in the Sierra Nevada are “unequivocal” evidence of the ruinous domino-effects that climate change is having on California, a new California Environmental Protection Agency report states. The 350-page report released Wednesday tracks 36 indicators of climate change, including a comprehensive list of human impacts and the effects on wildlife, the ocean, lakes, rivers and the mountains.

Impact Of A Warming Climate On The Sierra Nevada And California’s Water

Imagine a California where springtime temperatures are 7F warmer than they are today, where snowmelt runoff comes 50 days earlier and the average snowpack is just 36 percent of the 1981–2000 average. That may be the reality by the end of the century if we don’t curb greenhouse gas emissions, say researchers from the University of California, Los Angeles. A recent report from the UCLA Center for Climate Science analyzes how climate change will impact the Sierra Nevada and what that will mean for water resources.

Phase Two Of Construction Begins At Oroville Dam

Crews went back to work again on the Oroville Dam at midnight on Tuesday for phase two of construction. This year, crews will be replacing the temporary walls with permanent structural concrete walls. Crews are removing the temporary roller-compacted concrete walls in the middle section of the main spillway.

 

OPINION: Hold Water District Board Accountable For Delta Tunnels Vote

It’s ludicrous for the Santa Clara Valley Water District board to believe it can steer Gov. Jerry Brown’s $16 billion Delta twin tunnels project by committing to help fund it. The board should stand up to pressure from the state and reject the project when it meets at 9:30 a.m. Tuesday and instead work with California’s next governor on a plan to truly secure a reliable source of water for Silicon Valley while protecting the environmental health of the Delta.