On Monday, California fire officials gathered to launch the state’s annual Wildfire Preparedness Week. The message they delivered was clear: Summer 2020 would not mimic summer 2019, when wildfires mostly remained small and manageable into August.
Since 2000, the West has been stricken by a dry spell so severe that it ranks among the biggest “megadroughts” of the past 1,200 years. But scientists have found that unlike the decades-long droughts of centuries ago, this one has been supercharged by humanity’s heating of the planet.
A study recently published in the journal Science found that global warming and climate change have led to an emerging “megadrought” in the western U.S. – and that the drought we’ve been experiencing over the last 20 years is as bad or worse than any in 1,200 years.
Unless steps are taken to check global warming, up to 3 billion people will find themselves in areas too warm for human comfort, a new study finds.
Early this month, scientists announced a surprising discovery: The “fingerprint” of climate change is now detectable in everyday weather. In fact, evidence of global warming can be found in the planet’s weather every day, minute, and second since 2012.
But wait —you, a person who actually paid attention in your high school atmospheric science class, say — weather and climate are not the same! Right you are, dear reader. Weather is what happens in the moment (rain passing through, or the current temperature outside). Climate is average weather over time.
Another slow-motion, man-made environmental disaster has been discovered, and it’s underneath your feet.
About 70% of the water pumped out of underground aquifers worldwide is used for agriculture while much of the remainder quenches the thirst of cities. As industrial development spreads at a speedy clip, the rate at which those critical reservoirs are emptied is far outpacing the rate at which they are naturally replenished.
State officials Thursday toured San Diego County water infrastructure to get a first-hand look at the region’s successful water portfolio approach for supply diversification.
California Natural Resources Agency Secretary Wade Crowfoot, Deputy Natural Resources Secretary Thomas Gibson, State Department of Food and Agriculture Secretary Karen Ross, and State Water Resources Board Chair E. Joaquin Esquivel were here to assess the region’s water projects as part of their new role in developing a water portfolio strategy for the state.
“The region is proof that the portfolio approach works,” said Water Authority Board Chair Jim Madaffer. “The Water Authority and its 24 member agencies continue to develop local projects and explore opportunities that would benefit the region, the state, Mexico and the Southwest.”
At a luncheon meeting and panel discussion at University of California, San Diego following the tour, the agency officials joined a group of more than 150 people to hear how the portfolio approach can help California and the Southwest meet water supply challenges.
Along with the Water Authority Board of Directors, elected officials, business, community and state and local leaders gathered in an auditorium at the Southwest Fisheries Science Center on the La Jolla campus.
“The state needs to look at a global approach to managing water,” said Water Authority Board Chair Jim Madaffer.
Madaffer said during the meeting that San Diego’s portfolio approach has been successful in increasing the region’s water supply reliability through diversification and innovation.
“The Water Authority’s model is one that can be replicated across the state to help ensure a secure water future for all Californians,” said Madaffer.
State agency leaders echoed Madaffer’s comments.
“San Diego has been a leader in the water portfolio approach,” said Wade Crowfoot. “We have to make the investments to build regional water resilience as part of the Governor’s order to develop a portfolio to manage water in California.”
On first-hand view of region's water infrastructure: "It helps give an appreciation for all that San Diego is working to do to make itself resilient and I think it serves as a model for the rest of the state,” Wade Crowfoot, California Secretary for Natural Resources. #cawater pic.twitter.com/52i6hkhKBO
— Ed Joyce (@EdJoyce) July 18, 2019
The Water Authority invited the officials to visit after Gov. Gavin Newsom issued an Executive Order in April, directing state agencies to “prepare a water resilience portfolio that meets the needs of California’s communities and environment through the 21st century.”
In his May letter to Newsom, Madaffer thanked the governor for the “wisdom and leadership” with the issuance of Executive Order N-10-19, and invited the governor to tour San Diego County’s cutting-edge water facilities.
Newsom’s order also directed his administration to “identify and assess a suite of complementary actions to ensure safe and resilient water supplies, flood protection and healthy waterways for the state’s communities, economy and environment.”
State and Water Authority officials before aerial and ground tour of regional water infrastructure. Photo: Water Authority
The California Natural Resources Agency, the California EPA, and the California Department of Food and Agriculture, in consultation with the Department of Finance, were directed by Gov. Newsom to, among other tasks, “identify key priorities for the administration’s water portfolio moving forward.”
“Governor Newsom wants us to think long and broadly on water,” said Crowfoot. “He wants us to get away from the silos and conflicts on water in California – the mindset of environment groups versus farmers, north versus south, urban versus rural – and work together on water resiliency.”
“San Diego is a great example of the challenges and complexities of managing water supply, as we look to supercharge water resiliency in California,” said E. Joaquin Esquivel, Chair, Calif. State Water Resources Control Board, after a tour of water infrastructure. #cawater pic.twitter.com/t0SCcHLyGt
— Ed Joyce (@EdJoyce) July 18, 2019
“The Water Authority and its 24 member agencies have made significant investments in the last two decades to diversify our water supply, creating a portfolio of resources to support our region’s 3.3 million people and $231 billion economy,” said Madaffer.
During the tour, the officials got a first-hand look at some of those investments, including the San Vicente Reservoir, Olivenhain Reservoir, and the Claude “Bud” Lewis Carlsbad Desalination Plant.
The Olivenhain Dam and Reservoir are a cornerstone of the San Diego County Water Authority’s Emergency and Carryover Storage Project, helping to protect the region from severe water supply shortages. Photo: Water Authority
The Water Authority is exploring a battery storage project at the San Vicente Reservoir that would generate clean energy to help meet California’s climate goals. Photo: Water Authority
Scripps Institution of Oceanography research meteorologist Dan Cayan told the audience that temperatures and dry spells will increase in California in the future, making water storage, conservation, and forecasts even more critical.
“Global warming climate models show the Sierra Nevada snow pack will be 50% less in 2090 than today’s average April 1 snowpack,” said Cayan.
Scripps Institution of Oceanography research meteorologist Dan Cayan said temperatures and dry spells are expected to increase in California, making water storage, conservation and forecasts even more critical. Photo: Water Authority
Cayan said observations and climate model projections indicate climate change is occurring and will grow stronger. California should expect 1.5-2 degrees Fahrenheit warming by 2050, he said.
Water Authority Assistant General Manager Dan Denham described a new study that will explore the viability of a regional pipeline to transfer water from the Colorado River to benefit multiple users in San Diego County and across the Southwest.
The pipeline system is one of a handful of ideas being discussed by San Diego County water leaders to enhance partnerships and solutions that make sense locally and more broadly as part of Governor Newsom’s Water Portfolio Program to develop resiliency statewide.
Map indicates three potential routes for a proposed regional pipeline system that would move Quantification Settlement Agreement water directly from the Imperial Valley to San Diego. Two of the routes (the light blue and purple lines) follow a southern route. The third proposed route, (shown in both a yellow and darker blue line) follows a northern path. Graphic: Water Authority
Creating a pipeline to transfer Colorado River water to the San Diego region has been studied periodically over decades.
But the new study is focused on how a regional pipeline could provide multiple benefits as part of a long-term water management strategy for California and the Southwest.
The expanded review will consider a system that could create much-needed storage opportunities for the Imperial Irrigation District that could support agriculture while addressing critical issues like the Salton Sea and the need for more renewable energy development.
San Diego researchers are among many scientists around the world trying to understand how a warming climate is affecting the world’s major ice sheets. Two Scripps Institution of Oceanography researchers are studying the changes in different parts of the world about the change that could affect local oceans. As part of our reporting from the Climate Change Desk, KPBS Environment Reporter Erik Anderson discussed the issue with glaciologist Helen Fricker and physical oceanographer Fiamma Straneo.
On June 23, 1988, a sultry day in Washington, James Hansen told Congress and the world that global warming wasn’t approaching — it had already arrived. The testimony of the top NASA scientist, said Rice University historian Douglas Brinkley, was “the opening salvo of the age of climate change.” Thirty years later, it’s clear that Hansen and other doomsayers were right. But the change has been so sweeping that it is easy to lose sight of effects large and small — some obvious, others less conspicuous.
The Water News Network is San Diego County’s source for water news and information.
