Scientists are concerned about a large marine heatwave off the US west coast that is affecting habitats from Hawaii to Canada. #marineheatwave

https://www.theguardian.com/us-news/2026/may/22/marine-heatwave-west-coast

Why an immense marine heatwave off the US west coast has alarmed scientists

What does a surge in ocean temperatures, compounded with El Niño, bode for the summer?

The Guardian

【🎉Latest accepted article】
Marine heatwaves intensify competition between toxigenic microalgae and cultured macroalgae

#HarmfulAlgalBloom | #InterspecificCompetition | #MarineHeatwave | #Metabolomics | #SeaweedAquaculture | #Toxicity

https://doi.org/10.1093/jpe/rtag108

Record high ocean temperatures off southern California raise fears of prolonged marine heatwave

Researchers warn the high-pressure conditions could disrupt marine life and ecosystems if it continues

The Guardian

Catherine Li, et al.* investigate the impact of marine heat waves on air-sea CO₂ fluxes.

https://doi.org/10.1029/2024GL110379

#ocean #co2 #flux #MarineHeatWave

* Friedrich Burger, Christoph Raible, Thomas Frölicher

#climatechange #democracy
"additional warming in the pipeline as the world moves to cleaner fuels"
Only some coal and one type of marine fuel (banned ~2020), produce significant sulfur emissions, so the reality is that the vast majority of people can switch to “cleaner fuels” right away. and with complete peace of mind, knowing they are helping to solve the problem of excess greenhouse gases in the atmosphere.

Surface impacted by strong or higher #MarineHeatWave North Atlantic 0°N-60°N

California's oceans are breaking temperature records during a historic heat wave, with Scripps Pier recording 71°F in March—its warmest on record—breaking daily marks for days. A strong marine heat wave has developed off Southern California's coast, driven by an atmospheric ridge that weakened upwelling, allowing warm surface water to dominate instead of cold, nutrient-rich deep water rising. This pattern threatens ecological and meteorological impacts into summer, with experts monitoring whether conditions worsen or fade. These unprecedented ocean temperatures signal the intensifying effects of climate change on marine ecosystems. Click here to learn more: https://www.sfchronicle.com/weather/article/ocean-temperature-california-coast-22153754.php #ClimateChange #MarineHeatwave #CaliforniaWeather #OceanTemperatures #ClimateEmergency #Sustainability
Client Challenge

11) Alaska's iconic crab fisheries were shut down after marine heatwaves wiped out an estimated 10 BILLION snow crabs in a single year. Warmer Bering Sea waters likely boosted crab metabolism beyond what food supplies could sustain, triggering one of the most dramatic fishery collapses in history and devastating coastal communities and a billion-dollar industry.

#Alaska #CrabFishery #MarineHeatwave #BeringSea #OceanCrisis #Fishing #ClimateChange #Rorshok #ArcticUpdate

Is (Adelaide's) stormwater contributing to the toxic algal bloom?

"... Stormwater "had never been sexy" and, as long as it was flushed away, it did not get the attention nor the government investment it deserved."

"The EPA's Adelaide Coastal Waters Study (ACWS) summary of 2008 stated that nutrient loads had increased 30 to 50 times since European settlement, and recommended steps to reduce wastewater, stormwater and industrial inputs. The study found the loss of seagrass was "mainly due to stormwater flows" "
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https://www.abc.net.au/news/2025-11-21/is-adelaides-stormwater-contributing-to-the-toxic-algal-bloom/106025180
#ocean #rivers #pollution #runoff #stormwater #drains #dumping #waste #sprawl #housing #roads #infrastructure #MassMortalityEvents #MarineLife #seagrass #HABs #brevetoxins #MarineHeatwave #FossilFuels #coast #Australia #degradation

Is Adelaide's stormwater contributing to the toxic algal bloom?

Adelaide's stormwater network has been discharging high loads of sediment into the Gulf of St Vincent for decades, killing off seagrasses that are a key defence against blooms of the kind wreaking havoc in South Australia.

ABC News

The Guardian: Marine heatwave over Pacific Ocean could lead to flooding in north-west

Severe ‘blob’ or marine heatwave can lead to increased inundation and wintery weather in eastern North America

"...A marine heatwave known as a blob was especially severe this year in the north-western and central Pacific Ocean, which could lead in the coming months to increased flooding in the US Pacific north-west and especially wintery weather in eastern North America, according to climate scientists.

The temperature in August in the northern Pacific was 2.5C above preindustrial levels, according to Berkeley Earth, a non-profit that studies global warming...."

https://www.theguardian.com/us-news/2025/oct/23/pacific-ocean-marine-heatwave-north-west

#heatwaves #marineheatwave #pacific #ssts #climateemergency

Marine heatwave over Pacific Ocean could lead to flooding in north-west

Severe ‘blob’ or marine heatwave can lead to increased inundation and wintery weather in eastern North America

The Guardian

North Pacific Records Unprecedented Marine Heatwave Linked to Climate Change and Pollution Changes

The north Pacific Ocean experienced its warmest summer on record between July and September 2025, with sea surface temperatures surpassing previous highs by over 0.25°C. This extensive heatwave, covering an area roughly ten times the size of the Mediterranean, has puzzled climate scientists. While g... [More info]