Young Chinook salmon are becoming river "ghosts," dying unseen due to climate whiplash. A new study using chemical ear-stone tags shows that 80% of juveniles enter the Delta, but only 15% survive the journey to adulthood as wetlands disappear.
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#ChinookSalmon #ClimateChangeScience #RiverEcology
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#ChinookSalmon #ClimateChangeScience #RiverEcology
Wiley Online Library
A Modern Ghost Story: Increased Selective Mortality of Salmon Under Climate Extremes
We tracked nine cohorts of Chinook salmon (Oncorhynchus tshawytscha) from California's American River across their life cycle, using otolith and eye lens isotope analysis to identify the habitats and...
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Arctic marine heatwaves are intensifying, with marginal seas warming 0.6°C/decade—twice the global rate—and lasting 10-40 days, a new study reveals. Driven by sea ice loss and deep Atlantic currents, freshwater layers from melting ice amplify and prolong these surface heatwaves by 20%.
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#ArcticWarming #MarineHeatwaves #ClimateChangeScience
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#ArcticWarming #MarineHeatwaves #ClimateChangeScience
Nature
Polar processes set Arctic marine heatwaves apart
Communications Earth & Environment - Arctic marine heatwaves are influenced by unique, overlooked drivers including sea ice (which modulates air-sea heat fluxes, mixed layer depth, and...
A study using Mediterranean temperature and salinity records from 1950–2025 found the sea is warming and becoming saltier at an accelerating rate, with significant changes extending thousands of meters deep and surface warming since 2000 reaching 2–3 times the global ocean rate.
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#MediterraneanSea #OceanWarming #ClimateChangeScience
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#MediterraneanSea #OceanWarming #ClimateChangeScience
AGU Journals
Observational Evidence for Accelerated Warming and Salinification Propagating Into the Deep Mediterranean
Mediterranean warming and salinification are accelerating, by up to 0.3°C per decade2 in the upper 1,000–2,000 m
Acceleration is vertically coherent, reaching the deep basin, so linear trends alo...
Acceleration is vertically coherent, reaching the deep basin, so linear trends alo...
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A 40-year study of Swiss protective forests found declining stands increased across elevation zones, with drought-related losses now reaching forests up to 2,200 meters as warming erodes the historical protection from drought provided by higher elevations.
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#ForestProtection #DroughtImpact #ClimateChangeScience
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#ForestProtection #DroughtImpact #ClimateChangeScience
Frontiers
Frontiers | Four decades of drought impacts on Swiss protective forests: a vanishing altitudinal gradient
Swiss protective forests are distributed along a wide altitudinal gradient, where many are already facing the deleterious impacts of repeated drought episode...