Articles tagged with Ocean Warming
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A new study projects significant changes in fish stocks in the UK due to climate change, including increased abundance of warm-adapted species and declining populations of cold-adapted species. The findings highlight the need for flexible management approaches to adapt to these changes and ensure sustainable fishing practices.
Researchers used social media network models to analyze fish populations in the Mediterranean Sea, finding that warming seas have significant and widespread effects on biodiversity. The study suggests that winter warming may lead to changes in fish communities, potentially causing some species to disappear from certain areas.
A theoretical model suggests that slowing Atlantic Meridional Overturning Circulation leads to reduced northward nutrient transport, suppressing Subarctic Atlantic Ocean biological productivity. This finding may improve marine biogeochemistry projections for the next century.
A recent study found that tropical biodiversity in the ocean is declining, with a potential decrease in diversity by the end of the century. The research, led by Drs Moriaki Yasuhara and Timothy C Bonebrake, used fossil records to project future marine biodiversity patterns.
The study found that global mean climate velocities in the deepest ocean layers have been 2-4 times faster than at surface over the past 20th century. Climate velocities are projected to continue accelerating even under strong greenhouse gas emission mitigation scenarios, posing significant threats to deep sea biodiversity.
The deep ocean is warming at a slower rate than the surface, with climate velocity accelerating to 11 times the present rate in waters between 200-1000 metres by the end of the century. This poses huge challenges for protecting areas and mitigating threats to deep-sea life.
Researchers analyzed sea-surface temperatures and planktonic foraminifer shells to determine that tropical ocean biodiversity started declining around 15,000 years ago, before the Anthropocene era. Continued global warming may further reduce biodiversity in tropical oceans.
Research suggests that global warming could disturb the Indian Ocean's surface temperatures, triggering an Indian Ocean El Niño similar to the Pacific Ocean phenomenon. This could lead to new climate extremes, including disruption of monsoons over East Africa and Asia.
New research reveals that up to 93% of North Atlantic Subtropical Mode Water has been lost in the past decade due to ocean warming, weakening its ability to absorb heat and carbon dioxide.
A global analysis of over 300 marine species spanning more than 100 years shows that mammals, plankton, fish, plants, and seabirds are changing in abundance as oceans warm. Some marine species are benefiting from climate change, while others are declining due to warming temperatures.
A new international study led by UNSW Sydney reveals that the West Antarctic Ice Sheet melted rapidly during the Last Interglacial period, causing a multi-metre rise in global mean sea levels. The research suggests that the ice sheet is highly sensitive to future ocean warming, posing an urgent need to minimize warming.
A new study shows that warmer seawater with lower pH can alter the feeding habits of the peppery furrow shell, a common clam, leading to greater tolerance among surface-dwelling invertebrates. This change affects the interaction network between porewater nutrients, primary producers, and burrowing invertebrates.
A new analysis shows the world's oceans were the warmest in 2019 than any other time in recorded human history. The study reveals that the past ten years have been the warmest on record for global ocean temperatures, with significant consequences for marine life and extreme weather events.
A new study found that as ocean warming increases, cold-water species are replaced by warm-water species in marine communities. This shift is driven by species' thermal affinities and can be predicted based on regional temperature changes.
An international team of scientists analyzed 3 million species records from 200 ecological communities worldwide to reveal the impact of ocean warming on fish communities. The study found that subtle changes in species movement in response to rising temperatures made a significant impact on the global picture.
A study published in Nature Climate Change found that climate change is altering the mix of species in oceans, with warm-water species rapidly increasing and cold-water marine species decreasing. This shift can disrupt fisheries and ocean food chains.
A recent study found that the ratio of carbon isotopes in tuna has declined substantially since 2000, indicating shifts in phytoplankton populations. This change may be linked to increased ocean stratification and fossil fuel carbon capture, which could impact the marine food web.
Two new studies analyze the role of warming oceans and local conditions in shaping lobster populations, suggesting a period of decline for the Gulf of Maine fishery. The American Lobster Settlement Index provides an accurate prediction of lobster abundance four to six years later.
Researchers explore energy redistribution between atmosphere and ocean, finding no slowdown in global warming when ocean heat content is considered. Oceanic warming poses a threat to marine ecosystems and biodiversity.
Researchers analyze two recent global warming events, the Cretaceous-Paleogene boundary and Paleocene-Eocene Thermal Maximum, to understand how oceans, animals, and plants respond to rapid climate change. The studies reveal that both events were caused by massive greenhouse gas releases, including carbon emissions from volcanic eruptions.
Researchers found that as the Indian Ocean warms, it generates additional precipitation, drawing air from other parts of the world to dilute its salinity. This results in saltier water in the Atlantic Ocean, which accelerates its circulation, providing a potential 'jump-start' for the AMOC.
A new study reveals ocean temperature 'surprises' are becoming more common, disrupting natural and human communities. The research found nearly double the expected rate of warming events globally, with significant impacts on marine ecosystems and decision-making strategies for ocean resource management.
Scientists predict the oceans will become warmer, but surprisingly more oxygen-rich due to nitrogen-cycle interactions. After centuries of declining oxygen levels, the ocean's oxygen inventory may even surpass pre-industrial levels by 4000 years.
Researchers discovered that corals with thicker soft tissues can recover more quickly from bleaching due to the presence of beneficial algae. The stored energy in these tissues helps corals survive until environmental factors improve.
A new study published in Nature Communications found that coral reefs near the equator are less affected by ocean warming than those at higher latitudes. Corals in these regions were found to be more tolerant of high temperatures, with some even able to withstand temperatures that would bleach corals elsewhere.
A Rutgers-led study finds that climate change has led to a decline in sustainable catches for many species of fish and shellfish, with estimated losses ranging from 15% to 35% in some regions. The study highlights the need for fisheries managers to address overfishing and account for climate change in their decision-making.
A new study reveals that naturally occurring carbon gases trapped in undersea reservoirs escaped to superheat the planet in prehistory, disrupting the Earth's atmosphere and causing global warming. The findings challenge the long-standing paradigm that ocean water alone regulated carbon dioxide in the atmosphere during glacial cycles.
The combination of ocean warming and an infectious wasting disease has devastated populations of large sunflower sea stars along the West Coast. The loss of these sea stars has caused a cascading effect on the ecosystem, with urchin populations expanding and threatening kelp forests and biodiversity.
The 2018 ocean heat content observations reveal the highest recorded temperature for the global ocean since the 1950s. This increase in heat content is ~100 million times more than the Hiroshima bomb and highlights the consequences of global warming on oceanic water temperatures.
Researchers found a direct association between ocean warming and increased wave energy globally. The study revealed a long-term trend of growing wave energy, particularly during extreme storm seasons, with devastating impacts on coastal areas.
New research reveals ocean heat content is accelerating, with 2018 likely the hottest year on record. The warming contributes to sea level rise, increased rainfall intensity, and stronger storms.
Recent ocean heating observations provide further evidence that global warming is accelerating, with the top 2,000 meters of oceans predicted to rise 0.78 degrees Celsius by the end of the century, contributing to sea level rise and extreme weather events.
A century and a half of reconstructed ocean warming offers insights into the Earth system's energy balance. The study suggests that global warming of the oceans has occurred over the past 150 years, with comparable warming patterns observed in the 1920s-1940s and 1990s-2015.
A new study reconstructs ocean heat storage since 1871, revealing key changes in temperature history and circulation patterns. The findings suggest that up to half of mid-latitude Atlantic Ocean warming can be attributed to changes in ocean circulation since the 1950s.
Researchers found that the deep Pacific Ocean lags behind in terms of temperature and is still adjusting to the Little Ice Age. The ocean's long memory indicates that it 'remembers' past climate conditions hundreds of years ago.
Researchers found that the deep Pacific Ocean is cooling due to historical climate variability, influencing modern warming trends. The discovery estimates a 30% downward revision of heat absorbed over the 20th century.
A new study by Woods Hole Oceanographic Institution reveals that sea levels are rising faster in some U.S. East Coast regions compared to others, primarily due to post-glacial rebound. The research team found that when post-glacial rebound was stripped away, sea level trends increased steadily from Maine to Florida, indicating the impa...
A new study published in Scientific Reports presents a conservation mitigation matrix for mitigating the impacts of climate warming on sea turtle nesting success. The research team found that simple measures such as shading with palm leaves and relocating nests can effectively prevent female-only turtle populations.
A new study finds that effective management of local issues can mitigate the detrimental impact of future global environmental changes on marine organisms. The research highlights the importance of adjusting regulation associated with oil spill prevention to maximize resilience in marine ecosystems.
Researchers at the University of Delaware have found a previously unknown pathway for heat to travel from the Pacific to the Indian Ocean, bypassing the Indonesian Throughflow. This discovery has significant implications for climate change research and could inform scientists about global warming.
Researchers have discovered that adult Antarctic krill are largely unaffected by ocean acidification levels predicted within the next 100-300 years. The long-term laboratory study found that krill can survive, grow and mature in acidic conditions.
A 30-year study found that warming waters caused rapid shifts in connected marine ecosystems, with smaller fish moving northward and entire communities inverting. The research suggests that future warming events could have major impacts on marine ecosystems and fisheries.
A recent study led by Princeton University researchers found that the world's oceans have absorbed 13 zettajoules of heat energy per year between 1991 and 2016, exceeding previous estimates by 60%. This increase in ocean warming suggests that Earth is more sensitive to fossil-fuel emissions than previously thought.
The study assesses 13 ocean-based measures to reduce atmospheric CO2, counteract ocean warming, and mitigate sea-level rise. Ocean-based renewable energy stands out as the most promising solution, with moderate effectiveness for reducing marine pollution and protecting marine habitats.
A study suggests that a warmer tropical Atlantic and increased greenhouse gas concentrations may have driven the 2017 Atlantic hurricane season. The researchers predict higher numbers of major hurricanes in future seasons, with a continued risk over the Caribbean, US Coast, and northern North Atlantic.
A new study has found that warmer water from hundreds of miles away is penetrating deep into the Arctic's interior, leading to a two-fold increase in heat content over the past 30 years. If this 'archived' heat reaches the surface, it could melt the entire sea-ice pack covering most of the region for most of the year.
Research suggests that global oceanic warming contributes to warmer winters in Europe and northern East Asia. The team found positive North Atlantic Oscillation anomalies, low-pressure systems, and a weaker-than-normal East Asian trough linked to oceanic warming.
A Rutgers University-led study documents how baby sea snail larvae detect and respond to ocean turbulence and waves, improving their chances of survival. Climate change may impact the habitats of these larvae, potentially affecting their populations.
Changes in heat flow from the Pacific Ocean may have a larger effect on Arctic climate than previously recognized. The study found that ocean-to-atmosphere heat flow scenarios in the North Pacific and North Atlantic resulted in greater global and Arctic surface air temperature anomalies.
A study on Greenland's tidewater outlet glaciers reveals that ocean warming and meltwater runoff contribute significantly to glacier retreat. The research found that these factors account for up to 76% of individual glacier retreat and 54% of variation across the glaciers.
Researchers found that early animals caused a decrease in oxygen levels and increase in carbon dioxide, leading to global warming. This process had a massive impact on the environment, contributing to mass extinctions during animal evolution's first 100 million years.
Previous ocean model calculations underestimated recent oxygen decline, with global warming as the main cause. The study identifies additional drivers, including changes in ocean circulation and biogeochemical processes, which were insufficiently represented in models.
A new study using genomic techniques found that algal cells in coral reefs exhibit stronger responses to ocean warming and acidification stress than their coral hosts. The research suggests an early warning system for bleaching events, which could help anticipate and prevent massive damage to coral reef habitats.
Researchers found that reef fish inherit epigenetic changes from their parents, enabling them to cope with warmer ocean temperatures. This adaptation may provide a buffer against the impacts of climate change and allow for genetic adaptation over time.
A new study reveals that reefs experiencing frequent temperature changes are better equipped to resist coral bleaching during ocean warming events. The research highlights the importance of high-frequency temperature variability in reef regions worldwide, providing valuable insights for conservation efforts and marine spatial planning.
Researchers found a direct link between ocean warming and trends in continental humidity and temperature. Analysis of data from 1979-2016 revealed land temperatures increasing faster than ocean temperatures, but specific humidity over oceans increased faster than over land.
The Atlantic overturning has slowed down by 15% since the middle of the 20th century due to human-caused global warming. This weakening causes widespread cooling in the northern Atlantic and shifts the Gulf Stream northwards.
The Atlantic Meridional Overturning Circulation (AMOC) has slowed down by about 15 percent since the 1950s, with recent years showing a record low. This weakening is linked to rising carbon dioxide levels and impacts fish distributions, ocean temperatures, and fisheries in the Northeast U.S. Shelf.
Researchers found a 54% increase in marine heatwave days every year, with significant impacts on ecosystems, biodiversity, fisheries, tourism, and aquaculture. The study also revealed an acceleration of the trend in marine heatwaves since 1982, with profound economic consequences.
New research reveals that larger coral reefs can moderate the impact of ocean warming on Caribbean fish populations, leading to a reduction in fish population decline. The study found that doubling reef area can reduce changes in fish composition by 30-80%, highlighting the potential effectiveness of reef conservation and restoration.