California is looking to boost water supply and considering new regulations to recycling wastewater straight to your tap. Some refer to it as toilet to tap, however experts in the field say this phrase is anything but accurate.
“It never has been toilet to tap. That has never happened,” said Andrew Salveson, the Carollo Water Reuse Chief Technologist.
El Niño is anticipated to continue through the Northern Hemisphere winter (with a greater than 95% chance through January – March 2024). An El Niño Advisory remains in effect.
In August, sea surface temperatures (SSTs) were above average across the equatorial Pacific Ocean [Fig. 1], with strengthening in the central and east-central Pacific. All of the latest weekly Niño indices were in excess of +1.0°C: Niño-4 was +1.1°C, Niño-3.4 was +1.6°C, Niño-3 was +2.2°C, and Niño1+2 was +2.9°C [Fig. 2]. Area-averaged subsurface temperatures anomalies increased compared to July [Fig. 3] in association with anomalous warmth in the central and eastern equatorial Pacific Ocean [Fig. 4]. Tropical atmospheric anomalies were also consistent with El Niño. Over the east-central Pacific, low-level winds were anomalously westerly, while upper-level winds were anomalously easterly. Convection was slightly enhanced around the International Date Line, stretching into the eastern Pacific, just north of the equator. Convection was mostly suppressed around Indonesia [Fig. 5]. The equatorial Southern Oscillation Index (SOI) and the traditional station-based SOI were both significantly negative. Collectively, the coupled ocean-atmosphere system reflected El Niño.
The most recent IRI plume indicates El Niño will persist through the Northern Hemisphere winter 2023-24 [Fig. 6]. Despite nearly the same ensemble mean amplitude as last month, the shorter forecast horizon means that the odds of at least a “strong” El Niño (≥1.5°C for the November-January seasonal average in Niño-3.4) have increased to 71%. However, a strong El Niño does not necessarily equate to strong impacts locally, with the odds of related climate anomalies often lower than the chances of El Niño itself (e.g., CPC’s seasonal outlooks). In summary, El Niño is anticipated to continue through the Northern Hemisphere winter (with greater than 95% chance through January – March 2024; [Fig. 7]).
This discussion is a consolidated effort of the National Oceanic and Atmospheric Administration (NOAA), NOAA’s National Weather Service, and their funded institutions. Oceanic and atmospheric conditions are updated weekly on the Climate Prediction Center web site (El Niño/La Niña Current Conditions and Expert Discussions). Additional perspectives and analysis are also available in an ENSO blog. A probabilistic strength forecast is available here. The next ENSO Diagnostics Discussion is scheduled for 12 October 2023.
El Niño is anticipated to continue through the Northern Hemisphere winter (with a greater than 95% chance through January – March 2024). An El Niño Advisory remains in effect. Graphic: NOAA
Full discussion on the latest El Niño update from the National Weather Service Climate Prediction Center: www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.shtml
The San Diego County Water Authority offers free WaterSmart classes, with both virtual and in-person options, taught by local landscape design professionals. Classes help participants understand landscape design and maintenance, soil identification and health, turf types and removal tips, plant selection, rainwater catchment, irrigation retrofits and project installation, whether completed as a DIY project or with contractor assistance.
Participants get the knowledge and skills they need to transform their yards into spaces that are water-efficient, sustainable, and beautiful year-round. The workshops are typically offered in spring and in fall clusters, with fall classes scheduled for September through November.
Five topics are available to choose from, including:
Residents will learn how to plan and design a landscape that is not only water-efficient, but also looks vibrant and attracts pollinators. Photo: San Dieguito Water District
Participants who attend all five workshops and meet other program criteria can sign up to receive an in-home visit by a landscape professional who will help them create customized landscape transformation plans, through the Designer at Your Door service. For more information, visit sdcwa.org/your-water/conservation/classes.
“The workshops are designed to help residents create and maintain their own beautiful and water-efficient outdoor spaces,” said Debby Dunn, a water resources specialist for the Water Authority. “Most of our residential water use is outdoors in our landscapes. This is why learning how to create water-efficient spaces is a great way for San Diegans to continue doing their part to use water efficiently.”
For people who prefer to learn at their own pace, the Water Authority offers short, entertaining and educational on-demand videos, with topics that mirror the workshops. To watch the videos go to sdcwa.org/your-water/conservation/classes and click on the videos link.
Low-water plants, improved irrigation technologies, and WaterSmart classes not only save water, but also reduce energy use, protect our natural resources, and create beautiful outdoor living spaces.
(Editor’s note: The “Thanks for Planting Me!” summer campaign offers gratitude to the hundreds of thousands of San Diegans who have transformed their landscapes using low-water and native plants as part of a larger effort to use water more efficiently.)
Pumped storage hydropower is the greenest renewable energy technology for large-scale energy storage, a new study suggests.
Researchers with the National Renewable Energy Laboratory said closed-loop pumped storage hydropower will have a lower carbon footprint throughout the lifecycle of the technology, from construction to decommissioning, than other renewable energy storage technologies like lithium-ion batteries. Portland Business Journal first reported the study.
Closed-looped pumped storage hydropower uses two water reservoirs located at different elevations, one higher than the other, that generate power as water flows or gets pumped, from one reservoir to another. Closed-looped pumped storage hydropower is not connected to continuously naturally flowing water sources.
As the nation continues to push forward to reduce greenhouse gas emissions and transition from using fossil fuels to limit the effects of climate change, storing renewable energy in batteries or pumped storage hydropower has come up as a possible solution for creating cleaner energy at a large scale. Other grid-scale technologies have proven difficult to create, from gathering essential minerals to finding an area large enough to place these technologies. Researchers said closed-looped pumped storage hydropower could be the answer.
Earth is exceeding its “safe operating space for humanity” in six of nine key measurements of its health, and two of the remaining three are headed in the wrong direction, a new study said.
Earth’s climate, biodiversity, land, freshwater, nutrient pollution and “novel” chemicals (human-made compounds like microplastics and nuclear waste) are all out of whack, a group of international scientists said in Wednesday’s journal Science Advances. Only the acidity of the oceans, the health of the air and the ozone layer are within the boundaries considered safe, and both ocean and air pollution are heading in the wrong direction, the study said.
“We are in very bad shape,” said study co-author Johan Rockstrom, director of the Potsdam Institute for Climate Impact Research in Germany. “We show in this analysis that the planet is losing resilience and the patient is sick.”
It wasn’t too bad of a summer season here in Northern California and really, when it comes to temperature, the entire state of California had a pretty mild summer.
Perhaps Kaitlyn Trudeau, a meteorologist with Climate Central, summed it up best: “Well, it wasn’t as hot as it’s been in recent years.”
California will spend about $300 million to prepare a vast groundwater and farming infrastructure system for the growing impacts of climate change.
California Department of Water Resources announced Tuesday that it has awarded $187 million to 32 groundwater sub-basins, which store water for future use that mainly flows from valuable snowmelt, through the Sustainable Groundwater Management Grant Program.
New government data released Monday revealed that the U.S. has already experienced more billion-dollar weather disasters in 2023 than in any other year since authorities started tracking such data 40-plus years ago.
Two projects led by researchers from UC San Diego’s Scripps Institution of Oceanography have been awarded nearly $2.5 million by the National Oceanic and Atmospheric Administration (NOAA) to probe the potential of climate change solutions aimed at fighting ocean acidification and removing planet-warming carbon dioxide from the atmosphere.
Arizona is one of the fastest-growing states in the U.S., with an economy that offers many opportunities for workers and businesses. But it faces a daunting challenge: a water crisis that could seriously constrain its economic growth and vitality.
