Climate scientists see alarming new threat to California

California could be hit with significantly more dangerous and more frequent droughts in the near future as changes in weather patterns triggered by global warming block rainfall from reaching the state, according to new research led by scientists at Lawrence Livermore National Laboratory. Using complex new modeling, the scientists have found that rapidly melting Arctic … Continue reading “Climate scientists see alarming new threat to California”

When is it a wetland? When a state board says so

By Aubrey Bettencourt Special to The Bee October 13, 2017 A single word, in the right context, has power. The State Water Resources Control Board is engaged in a wholesale reclassification of millions of acres of public and private lands by choosing a new definition for the word “wetland.” Opinion Whether out of fear of … Continue reading “When is it a wetland? When a state board says so”

California Needs to Rethink Urban Fire Risk After Wine Country Tragedy

Policy and planning shortfalls in how we assess fire risk need to be addressed because we’re likely to see more wildfires tearing through urban neighborhoods, says fire expert Max Moritz of the University of California, Berkeley. Written by Max Moritz, Published on Nov. 9, 2017, Read time Approx. 6 minutes We recently witnessed the wind-driven Tubbs fire blast … Continue reading “California Needs to Rethink Urban Fire Risk After Wine Country Tragedy”

Toxic Ashes and Charred Forests Threaten Water After North Bay Fires

The fires that burned wildlands and urban areas in Northern California this month now pose a threat to water quality, humans and wildlife as crews work to contain unstable hillsides and keep toxic debris from entering waterways. Written by Alastair Bland. Published on Oct. 24, 2017. Read time Approx. 5 minutes For many homeowners in … Continue reading “Toxic Ashes and Charred Forests Threaten Water After North Bay Fires”

Satellite Imagery Used to Measure Algal Bloom Frequency—Steps Toward Understanding Exposure Risk

Study explores the utility and limitations of currently available remotely sensed satellite data for identifying the frequency of algal blooms in the Nation’s lakes and reservoirs. This information provides a first step toward the goal of understanding exposure risk to protect the health of humans, pets, livestock, and wildlife. Our Nation’s lakes and reservoirs provide … Continue reading “Satellite Imagery Used to Measure Algal Bloom Frequency—Steps Toward Understanding Exposure Risk”

Improving the Health of California’s Headwater Forests

Van Butsic, Henry McCann, Jodi Axelson, Brian Gray, Yufang Jin, Jeffrey Mount, Scott Stephens, William Stewart September 2017 Summary California’s headwater forests are not thriving under current management practices, and changes are needed to make them more resilient to periodic drought and long-term climate change. More active management of these lands is needed to improve forest health, reduce the risk of major … Continue reading “Improving the Health of California’s Headwater Forests”

Study Details Timber Harvest Impacts On Stream Temperatures; Private Lands Warmer

September 23, 2011 One of the largest and longest studies done in Oregon on the impact of timber harvest on stream temperatures has found no average temperature increases on state forest lands, but a 1.3 degree increase on private timber lands. Stream temperatures are a particular concern for cold-water fish such as trout and salmon, and the … Continue reading “Study Details Timber Harvest Impacts On Stream Temperatures; Private Lands Warmer”

State Water Board Issues Revised Rule for Definition of Wetlands and Dredge/Fill Procedures

Elizabeth “Betsy” Lake  HIGHLIGHTS: The California State Water Resources Control Board (State Water Board) has published its final draft proposed rule for a “State Wetland Definition and Procedures for Discharges of Dredged or Fill Material to Waters of the State” (Proposed Rule). The Proposed Rule includes a definition of wetlands applicable to State Water Board … Continue reading “State Water Board Issues Revised Rule for Definition of Wetlands and Dredge/Fill Procedures”

Why California’s Nitrate Problem Will Take Decades to Fix

The state has a long-term plan to clean up nitrate-contaminated groundwater, but farmers say more research is still needed and environmental groups think the proposal isn’t strong enough. Written by Erica Gies Published on Aug. 31, 2017 When folks talk about “black gold” in California’s Central Valley, it’s usually a reference to oil – unless you’re in the … Continue reading “Why California’s Nitrate Problem Will Take Decades to Fix”

New Report Lays Out Strategy to Evaluate Evidence of Adverse Human Health Effects From Endocrine-Disrupting Chemicals at Low Doses

July 18, 2017 WASHINGTON – A new report by the National Academies of Sciences, Engineering, and Medicine proposes a strategy that the U.S. Environmental Protection Agency (EPA) should use to evaluate the evidence of adverse human health effects from low doses of exposure to chemicals that can disrupt the endocrine system. Endocrine active chemicals (EACs) or endocrine … Continue reading “New Report Lays Out Strategy to Evaluate Evidence of Adverse Human Health Effects From Endocrine-Disrupting Chemicals at Low Doses”