California – Desdemona Despair

Counts (S) of anadromous adults in eight populations of the Santa Monica Mountains BPG. Counts are adjusted by +1 so that zero counts show up on the log scale Graphic: Boughton, 2022 in SWFSC 2022

April 30, 2024

Steelhead trout, once thriving in Southern California, are declared endangered – “The negative trend toward extinction has not reversed”

By Ian James 23 April 2024 (Los Angeles Times) – Southern California’s rivers and creeks once teemed with large, silvery fish that arrived from the ocean and swam upstream to spawn. But today, these fish are seldom seen. Southern California steelhead trout have been pushed to the brink of extinction as their river habitats have […]

Twenty-first century groundwater-level trends in globally distributed monitoring wells. Each point represents one monitoring well, coloured to represent the Theil–Sen trend of annual median groundwater levels during the twenty-first century. Blue and red points indicate shallowing and deepening, respectively, of groundwater levels over time, with darker colours indicating faster rates. a, Spatial distributions of groundwater-level trends in globally distributed monitoring wells. b–o, Regional maps illustrating the substantial spatial variability in groundwater-level trends. Supplementary Notes 16 and 17 show monitoring wells and their groundwater-level trends at subcontinental scales (Supplementary Note 16) and in 207 individual aquifer systems. Graphic: Jasechko, et al., 2024 / Nature

April 28, 2024

Groundwater resources are drying up across the globe – “Climate variability and change can impact water supplies underground as well as above-ground”

By Matthew Rozsa 24 January 2024 (Salon) – Humans rely on groundwater for many things, but especially our food. Roughly 30 percent of all the planet’s available freshwater comes from groundwater, or water that is found underground in the spaces between rocks, soil and sand. It is primarily used for agriculture and billions of humans are dependent […]

Spatial distribution of the total number of exposed days in 995 California ZIP Code Tabulation Areas (ZCTA) from 2006 to 2019 under the main analysis definition for climate hazards (85th percentile for extreme heat and 15 μg/m3 for wildfire PM2.5). (A) Compound exposure, (B) extreme heat alone, and (C) wildfire smoke alone. Gray color represents excluded ZCTA that has a population of ≤1000 or lacks any exposed day (extreme heat alone, wildfire smoke alone, or both). Graphic: Chen, et al., 2024 / Science Advances

April 28, 2024

Extreme heat, wildfire smoke harm low-income and nonwhite communities the most – “It’s really important to highlight this social injustice aspect of climate change”

By Dorany Pineda 2 February 2024 LOS ANGELES (AP) – Extreme heat and wildfire smoke are independently harmful to the human body, but together their impact on cardiovascular and respiratory systems is more dangerous and affects some communities more than others. A study published Friday in the journal Science Advances said climate change is increasing the frequency […]

Prentice Sinclair Smith a friend of home owner Dion Peronneau says she was awoken by the sound of cracking around 4 a.m. early morning Monday, as mudflow forced its way into her home in the Baldwin Hills area of Los Angeles, Tuesday, 6 February 2024. One of the wettest storms in Southern California history unleashed more than 300 mudslides in the Los Angeles area after dumping more than half of the city’s seasonal rainfall in just two days, and officials warned Tuesday that the threat hadn’t passed yet. Photo: Damian Dovarganes / AP Photo

February 8, 2024

Record rainfall, triple-digit winds, hundreds of mudslides. Here’s California’s storm by the numbers

LOS ANGELES, 6 February 2024 (AP) – The slow-moving atmospheric river still battering California on Tuesday unleashed record rainfall, triple-digit winds and hundreds of mudslides. Here is the historic storm by the numbers: Downtown Los Angeles In just three days, downtown Los Angeles got soaked by more than 8 inches (20.3 cm) of rain — more than half […]

Sean de Guzman, the manager of the California department of water resources snow surveys and water supply forecasting unit, and his team measure snowpack in January 2024. Photo: Andrew Nixon / California department of water resources

January 7, 2024

California snowpack lowest in decade despite hope with December 2023 storms – “In some places there is literally no measurable snow on the ground at all”

By Gabrielle Canon 4 January 2024 (The Guardian) – In the first snow survey of the season, California came up short – just 25% of the historical average – despite a spate of strong storms that caused flooding and landslides along the coast in late December. On Tuesday, officials measured a depth of just 7.5in at a […]

Map showing areas surrounding New Orleans underwater by 2050 if current trends in sea level rise continue. Graphic: Climate Central

January 1, 2024

Interactive map shows United States areas under the sea in 2050 due to climate change

By John O’sullivan 1 January 2024 (Irish Star) – Several parts of The United States could be underwater by the year 2050, according to a frightening map produced by Climate Central. The map shows what could happen if the sea levels, driven by climate change, continue to rise at rates of 2 mm and 4 mm […]

A post-wildfire debris flow in the burn scar of the Walker Creek Fire caused significant damage in central Washington in the summer of 2022. Photo: Washington State Department of Natural Resources

December 3, 2023

When burn scars become roaring earthen rivers – “We’re screwed for mudslides”

By Kylie Mohr 1 November 2023 (High Country News) – Two Septembers ago, the residents of Grotto, Washington, woke to the Bolt Creek Fire ripping through the mountains above their homes. “This doesn’t happen here,” Patricia Vasquez remembers saying at the time, shocked. While areas east of the state’s Cascade mountains frequently burn in the […]

Flood waters ripple through an orchard of dead and dying pistachio trees in Tulare Lake. Photo: Robert Gauthier / Los Angeles Times

October 30, 2023

Heat, drought, floods, bad air: Will California’s Central Valley survive climate change? “It’s almost like the forecast for the middle, late century – we’re seeing it right now”

By Hayley Smith 25 October 2023 (Los Angeles Times) – One March morning in the small Central Valley town of Woodlake, Joshua Diaz was getting out of bed when he noticed that his carpet was bubbling and that his tile floor had grown slick. He tried to open his front door but felt pressure and […]

Migrant workers from Mexico, working on six-month visas, pick squash and peppers on a farm in Lyons, Georgia, in July of 2023. Photo: José Ibarra Rizo / TIME

August 5, 2023

Extreme heat in 2023 endangers America’s workers and economy – Likely dozens of workers have already died from heat exposure in what may be the hottest summer in U.S. history – “Why are we being asked to choose between working and staying alive?”

By Aryn Baker 3 August 2023 GEORGIA (TIME) – Just after dawn on a recent July day in Rochelle, Ga., Silvia Moreno Ayala steps into a pair of sturdy work pants, slips on a long-sleeved shirt, and slathers her face and hands with sunscreen. She drapes a flowered scarf over her wide-brimmed hat to protect […]

Maximum July temperatures averaged over the length of the heat events defined for the WWA study published on 25 July 2023 (left-hand side) and the same but expressed in anomalies with respect to 1950-2023 (right-hand side). The first row shows the Western USA and Mexico, the second Southern Europe and the third row China. Graphic: World Weather Attribution

August 5, 2023

Extreme heat in North America, Europe, and China in July 2023 made much more likely by global warming – Without human-induced climate change these heat events would have been extremely rare: China heatwave would have been a 1 in 250-year event, and max heat like in July 2023 would have been virtually impossible in the U.S./Mexico region and Southern Europe

25 July 2023 (World Weather Attribution) – Following a record hot June, large areas of the US and Mexico, Southern Europe and China experienced extreme heat in July 2023, breaking many local high temperature records. July 2023 saw extreme heatwaves in several parts of the Northern Hemisphere, including the Southwest of the US and Mexico, […]