{"query_echo":{"q":"","filters":{"geography":["Sacramento River"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'Sacramento River' for facet 'geography' is not in the controlled vocabulary."}]},"total":{"value":3,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?geography=Sacramento+River","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"sei-001977","url":"https://climateinsightsdirectory.org/document/sei-001977","title":"The water model behind California’s Bay-Delta plan","publisher":{"name":"Stockholm Environment Institute","organization":"stockholm-environment-institute"},"document_type":"fact sheet","language":"en","date_published":"2019-05","source_url":"https://www.sei.org/wp-content/uploads/2019/05/the-water-model-behind-the-bay-delta-plan.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The Sacramento Water Allocation Model (SacWAM), built using the Stockholm Environment Institute's Water Evaluation And Planning (WEAP) system, is being used by the California State Water Resources Control Board to update the Bay-Delta Plan. The model simulates the complex Sacramento-San Joaquin Delta water system to assess how proposed policy changes—such as new flow requirements for the Sacramento River and its tributaries—impact agriculture, water supply, and fisheries. SacWAM allows officials to compare current operations against an 'unimpaired state' to determine flow requirements that support both 25 million people and 3 million acres of farmland while restoring the Delta's ecosystem.","ai_generated":true,"unit":"sei-001977#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The Sacramento Water Allocation Model (SacWAM) is a hydrologic and system operations model based on the Water Evaluation And Planning (WEAP) system. It is designed to simulate both the current operations of the Delta's water system and its 'unimpaired state', which represents how water would flow without the presence of infrastructure, diversions, or dams.","ai_generated":true,"unit":"sei-001977#insight-1","date_modified":"2026-10-23"},{"text":"The California State Water Resources Control Board uses SacWAM to update the Bay-Delta Plan (the Water Quality Control Plan for the San Francisco Bay/Sacramento-San Joaquin Delta Estuary). The model helps evaluate the impact of proposed policy changes on fisheries, water supply, and agriculture, including new flow requirements for the Sacramento River, the eastside tributaries (Calaveras, Cosumnes, and Mokelumne rivers), and interior Delta flows.","ai_generated":true,"unit":"sei-001977#insight-2","date_modified":"2026-10-23"},{"text":"Following a 2016 independent peer review, SacWAM underwent improvements including the incorporation of additional climate data, modifications to groundwater representation, and an extension of the simulation period to cover September 2009 through September 2015.","ai_generated":true,"unit":"sei-001977#insight-3","date_modified":"2026-10-23"}],"climate_tags":["water management","ecological restoration","climate change"],"geography_discussed":["Sacramento River","San Francisco Bay"],"frame_perspective":[],"analysis_type":["technical description","policy application"]},{"id":"earjust-000062","url":"https://climateinsightsdirectory.org/document/earjust-000062","title":"Protecting Spawning Salmon in Butte Creek","publisher":{"name":"Earthjustice","organization":"earthjustice"},"document_type":"case study","language":"en","date_published":"2004-10-06","source_url":"https://earthjustice.org/case/butte-creek-ferc-consultation","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document details the struggle to protect spring-run Chinook salmon in Butte Creek, California, from the effects of water diversions by Pacific Gas & Energy's DeSabla-Centerville hydroelectric project. It highlights the species' vulnerability to low flows and high temperatures, the role of the Centerville Head Dam in blocking habitat access, and the legal pressure applied by Earthjustice to secure adequate water for spawning fish.","ai_generated":true,"unit":"earjust-000062#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Water diversions by Pacific Gas & Energy (PG&E) for electricity generation have reduced the deep, cold pools necessary for spring-run Chinook salmon to survive the summer, contributing to massive fish kills in 2002 and 2003.","ai_generated":true,"unit":"earjust-000062#insight-1","date_modified":"2026-10-23"},{"text":"The population of adult spring-run Chinook returning to Butte Creek saw a significant decline between 2005 and 2009, dropping from nearly 17,000 to 2,561.","ai_generated":true,"unit":"earjust-000062#insight-2","date_modified":"2026-10-23"},{"text":"The Centerville Head Dam acts as a major barrier to fish restoration by almost entirely blocking salmon from accessing the upper watershed of Butte Creek, and PG&E's 2007 license application proposed no mitigation for this habitat loss.","ai_generated":true,"unit":"earjust-000062#insight-3","date_modified":"2026-10-23"},{"text":"Legal threats from Earthjustice regarding the illegal 'taking' of protected fish have likely influenced the Federal Energy Regulatory Commission (FERC) and PG&E to agree to provide sufficient water for spawning salmon.","ai_generated":true,"unit":"earjust-000062#insight-4","date_modified":"2026-10-23"}],"climate_tags":["hydroelectricity","biodiversity loss","drought"],"geography_discussed":["San Joaquin River system","Sacramento River"],"frame_perspective":[],"analysis_type":["case study"]},{"id":"earjust-002324","url":"https://climateinsightsdirectory.org/document/earjust-002324","title":"Win by Losing","publisher":{"name":"Earthjustice","organization":"earthjustice"},"document_type":"case study","language":"en","date_published":"1993-05-12","source_url":"https://earthjustice.org/feature/win-by-losing","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document details a legal effort led by attorney Mike Sherwood and the American Fisheries Society to protect the Sacramento River winter-run chinook salmon. Although the initial lawsuit and subsequent appeal did not result in a court order for listing, the legal pressure prompted the National Marine Fisheries Service to voluntarily use emergency powers to list the species. This listing led to critical environmental interventions, including retrofitting the Shasta Dam for colder water releases, opening the Red Bluff diversion dam during migration, cleaning up the Iron Mountain Mine, and installing fish screens in irrigation districts. Consequently, the salmon population increased from a low of 190 fish during the appeal to more than 15,000 by 2004.","ai_generated":true,"unit":"earjust-002324#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The Sacramento River winter-run chinook salmon population suffered a severe decline from hundreds of thousands to a few thousand due to the construction of Shasta Dam, which blocked access to spawning grounds and released water that was too warm for eggs and larvae.","ai_generated":true,"unit":"earjust-002324#insight-1","date_modified":"2026-10-23"},{"text":"A lawsuit filed by the Northern California-Nevada chapter of the American Fisheries Society was the first of its kind to ask a court to order the listing of a species under the Endangered Species Act; while the judge initially turned them down, the legal action prompted the National Marine Fisheries Service to voluntarily list the species using emergency powers after the population dropped to 190 fish.","ai_generated":true,"unit":"earjust-002324#insight-2","date_modified":"2026-10-23"},{"text":"The listing of the winter-run chinook salmon as endangered triggered several environmental remediation efforts: Shasta Dam was retrofitted for cold water release, the Red Bluff diversion dam was kept open during critical migration periods, the Iron Mountain Mine was cleaned of acid and lethal pollution, and two irrigation districts installed fish screens.","ai_generated":true,"unit":"earjust-002324#insight-3","date_modified":"2026-10-23"},{"text":"Following these interventions, the winter-run chinook salmon population began to recover, increasing to more than 15,000 by 2004.","ai_generated":true,"unit":"earjust-002324#insight-4","date_modified":"2026-10-23"}],"climate_tags":["biodiversity loss","water management"],"geography_discussed":["Hawaii","Northern California","Nevada"],"frame_perspective":[],"analysis_type":["case study"]}]}