Tag

Ocean Warming

All articles tagged with #ocean warming

environment1 day ago•3 min saved

Record ocean heat hits new high as El Niño accelerates warming

Global ocean surface temperatures reached a record August average of 21.1C, boosted by a strong El Niño atop decades of human-caused warming. The heat drives more marine heatwaves, contributes to sea‑level rise and more extreme weather, and reduces the ocean’s capacity to absorb CO2. The Arctic is warming fastest, and scientists urge rapid fossil-fuel cuts and stronger protection of marine ecosystems to safeguard coastal communities.

via The Guardian|

#climate-change #el-nino #environment

science-and-environment5 days ago•9 min saved

Lobsters, warming seas and the hunt for an ocean carbon fix

New England lobsters face rising ocean temperatures and shrinking inshore stocks as scientists test ocean alkalinity enhancement (OAE) in the Gulf of Maine to boost the ocean’s carbon uptake and study its effects on lobsters and other marine life. The effort, under the LOC-NESS program, comes amid shifting funding—strong private and European backing countered by US cuts—raising questions about ecological risks and the role of geoengineering alongside urgent fossil-fuel reductions.

via The Guardian|

#gulf-of-maine #lobster-fishery #marine-carbon-removal

environment5 days ago•3 min saved

Warm European seas lure swimmers as ecosystems reel from warming, study finds

Europe’s oceans are warming rapidly due to climate change, adding about 2°C to the Mediterranean this summer and roughly 1.3–1.4°C to Western European waters, driving widespread marine heatwaves and ecological disruption. Species are shifting north, food webs are reassembling, and coastal fisheries and aquaculture face risks, with potential land heat implications from higher sea surface temperatures. While warmer seas may attract swimmers in cooler countries, the deeper ecological costs are substantial.

via Euronews.com|

#biodiversity #climate-change #environment

science25 days ago•5 min saved

Ancient Warming Event Shows Why Some Marine Life Survived Today’s Climate Crisis

Stanford-led researchers compared 38 marine species from Paleozoic and modern faunas and found that the end-Permian warming and ocean deoxygenation disproportionately hunted slow-metabolism Paleozoic organisms, while modern species were more tolerant of heat and low oxygen. The study (Marquez et al., PNAS, 2026) links temperature and oxygen sensitivity to survival during mass extinctions and suggests today’s warming could reach similar stress levels if emissions aren’t reduced, underscoring that humans can still change the trajectory.

via ScienceAlert|

#hypoxia #modern-fauna #ocean-warming

environment26 days ago•7 min saved

El Niño Could Upend California’s Crab and Salmon Fleets

With an 81% chance of a 'super' El Niño, researchers warn California’s crab and salmon fleets could face disruptions similar to 2015–16, as warmer oceans shift species, blunt juvenile salmon growth, and delay crab seasons (including toxic bloom-caused closures); relief funds for affected fishermen have often arrived only years later, threatening livelihoods.

via Los Angeles Times|

#california-fisheries #dungeness-crab #el-nino

weather27 days ago•16 min saved

Western Ridge Triggers Dual Southwest Heatwave Extending Into August as SoCal Remains Humid from Warm Seas

A strong western Pacific ridge, intensified by a developing strong El Niño and amplified by Hurricane Genevieve, is setting up a double-peaked heatwave across the Southwest into August. Unusually warm near‑shore ocean temperatures are keeping coastal SoCal humid and muggy, while record‑high 500 mb geopotential heights boost inland heat and could push Death Valley toward extreme temperatures. Nights may stay warm (often above 70–75F), increasing health risks and wildfire risk as fuels dry, with monsoon moisture possible only in brief, limited bursts and the pattern likely persisting into autumn.

via Weather West|

#el-nino #heatwave #ocean-warming

weather1 month ago•7 min saved

LA's Summer Humidity Rises: Warmer Ocean Waters and Persistent High Pressure Drive Muggy Nights

Southern California is experiencing unusually humid summer due to a persistent high-pressure pattern, near-record warm coastal ocean waters, and tropical moisture, which have raised dew points to 65–70°F and made nights uncomfortable; scientists warn such humid periods may become more common as oceans warm, though not every year.

via LA Public Press|

#climate-change #dew-point #humidity

science1 month ago•8 min saved

Metabolism Decides Survival in Earth's Great Ocean Catastrophe

A Stanford-led study of the end-Permian mass extinction (the Great Dying) finds that survival hinged on metabolism: species with faster metabolisms could cope with warmer, oxygen-poor oceans, while slow-metabolizing brachiopods perished, leaving mollusks, fish, and echinoderms to dominate. The research links oxygen demand to warming and acidification, suggesting metabolism as a predictor of which modern ocean species may endure or vanish under current climate change.

via A-Z Animals|

#great-dying #metabolism #ocean-warming

science1 month ago•8 min saved

Metabolism and Oxygen Rates Shaped Survival in Earth's Greatest Mass Extinction

A Stanford-led study shows that during the Permian–Triassic extinction about 252 million years ago, rapid warming and falling oxygen favored more metabolically active animals with efficient oxygen uptake (like mollusks) over slow, low-energy groups (such as brachiopods), helping explain why clams and snails survived while many ancient rivals vanished and highlighting how current ocean warming could drive similar patterns.

via SciTechDaily|

#brachiopods #great-dying #metabolism

science2 months ago•11 min saved

Tiny ocean warming could trigger irreversible West Antarctic collapse

A modelling study suggests the West Antarctic Ice Sheet could begin an irreversible collapse with as little as 0–0.25°C more warming at depth, after which the process would be self-propagating and could push global sea levels up by about four metres over centuries—continuing even if warming ceases; the result is not consensus but highlights a fast trigger and long-lasting coastal risks, particularly around the Amundsen Sea region.

via Space Daily|

#marine-ice-sheet-instability #ocean-warming #science

science2 months ago•82 min saved

Antarctica’s Texas-sized ice gap signals a warming ocean

A Texas-sized patch of winter sea ice failed to form in the Bellingshausen Sea off western Antarctica, a rare gap visible via satellites and likely linked to ocean warming; scientists say this is at least the third year in four that the region has seen unusually low sea ice, with potential effects on climate, ocean currents, and wildlife, and implications for nearby ice shelves such as Thwaites Glacier.

via Live Science|

#antarctica #bellingshausen-sea #climate-change

science3 months ago•10 min saved

Warming Oceans and Ice Melt Confirmed as Primary Drivers of Global Sea-Level Rise

A new Science Advances study shows global mean sea level has risen about 2.06 mm/year since 1960 and accelerated to 3.94 mm/year from 2005–2023, with ocean warming accounting for about 43% of the rise and ice melt from glaciers (27%), Greenland (15%), and Antarctica (12%) becoming larger contributors over time; corrections to satellite data and tide gauges resolve a long-standing measurement gap, and scientists warn sea level will keep rising for centuries even if emissions stabilize.

via SciTechDaily|

#antarctic-ice-sheet #glaciers #greenland-ice-sheet

environment3 months ago•6 min saved

Ocean Warming and Ice Melt Push Global Sea Levels Higher, Study Finds

Global sea levels are rising at an accelerating pace driven mainly by warming oceans expanding water, with glaciers and ice sheets contributing increasingly; improved satellite and tide-gauge measurements close a long-standing discrepancy between observations and known causes, and scientists warn sea levels will keep rising for centuries due to climate inertia.

via ScienceDaily|

#environment #glaciers #ice-sheets

environment3 months ago•15 min saved

Three-stage warming pushes Antarctic sea ice toward a tipping point

A Southampton-led study in Science Advances identifies a three-stage sequence behind Antarctic sea-ice collapse to record lows since 2015: warm Circumpolar Deep Water rising toward the surface, intensified mixing that rapidly melts ice (especially East Antarctica), and a self‑reinforcing cycle that prevents new ice from forming. The East Antarctica melt is ocean-heat-driven, while West Antarctica is amplified by cloud-driven warming. If this persistent low-ice state continues, the Southern Ocean could become a long‑term driver of global warming, with destabilized currents and potential impacts on sea level and climate.

via Oceanographic Magazine|

#antarctica #climate-change #environment

environment3 months ago•181 min saved

Antarctica’s sea ice plunges as a three-stage cascade unlocks a new climate state

A Science Advances study identifies a three-stage cascade—strengthening circumpolar winds pushing warmer, saltier water to the surface, surface water becoming saltier and more buoyant, and feedbacks that prevent new ice formation—that has driven Antarctica’s sea ice to a multi‑year decline, with record lows in 2022 and 2023. East Antarctica and West Antarctica show different drivers (deep-ocean heat vs. atmospheric warming). The loss of sea ice exposes ice sheets to waves and warmer waters, reduces sunlight reflection, and could accelerate global warming; if the trend continues into the 2030s, the climatic and sea‑level implications could be substantial.

via CNN|

#antarctica #climate-change #environment