Articles tagged with Ocean Warming
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Researchers found that water temperatures in the Florida Keys have increased by nearly 2 degrees Fahrenheit over the past few decades, stressing corals and causing more frequent bleaching events. The study indicates that August is the peak month for ocean temperatures, which can lead to coral mortality if prolonged.
Researchers at University of Washington found that heat absent from Earth's surface is plunging deep into the North and South Atlantic Ocean, part of a naturally occurring cycle. This explains the global average air temperature flatlining since 1999 despite greenhouse gases.
A new study reveals that marine crocodilian diversity is closely tied to sea temperature, with colonisation events occurring during global warming periods. The research suggests that environmental temperatures constrained the evolution and lifestyle of modern crocodilians.
A study published in Geophysical Research Letters found that ocean warming causes atmospheric circulation changes, leading to increased heavy rain bands and extreme precipitation events at mid- and high-latitudes. This shift could result in more common, but intense storms in previously rare regions.
Rapid Atlantic warming has turbocharged Pacific Equatorial trade winds, causing eastern tropical Pacific cooling and amplifying the Californian drought. The increased winds also accelerated sea level rise in the Western Pacific and slowed global surface temperature rise since 2001.
A new study suggests that the synchronization of North Atlantic and North Pacific climate variability preceded abrupt warming and the end of the last ice age. The researchers found that the combined warming of the two oceans provided a tipping point for rapid melting of northern ice sheets.
The Mediterranean Sea's iconic ecosystems, such as sea grass meadows and coral reefs, are facing rapid decline due to acidification and warming. Research suggests that human society worldwide must reduce fossil fuel emissions to save these ecosystems from extinction.
A study by McGill University researchers shows that climate change has led to a decrease in ocean salinity, creating a freshwater lid that prevents mixing with warm waters underneath. This has resulted in the suppression of naturally rare events like the Antarctic polynya and contributed to the shrinking of Antarctic Bottom Water.
A team of New York University scientists has found that the warming of the North and Tropical Atlantic Ocean is contributing to climate change in Antarctica. The study, published in Nature, reveals a previously unknown force behind Antarctic climate change.
A new study reveals that the Pacific Ocean is absorbing heat at a rate 15 times faster than in the past 10,000 years. This surge in heat absorption may provide scientists with more time to address climate change but is not a solution, according to researchers.
Scientists at Hebrew University and Bar-Ilan University found that Eilat's corals are more resilient than other sites due to a 'warm-water barrier' in the Red Sea. This barrier allows only heat-tolerant genotypes of corals to enter, making it a unique refuge for coral reefs.
A long-term study has revealed that the deep Greenland Sea is warming at a rate ten times higher than the global ocean, with potential consequences for European climate. The warming is caused by changes in the interplay of two processes: cooling from above and warming from below.
A new study reveals that stronger westerly winds around the South Pole can explain 80% of the increase in Antarctic sea ice volume over the past three decades. This is achieved through the creation of thicker, longer-lasting ice and exposure to blistering cold winds.
A study by Tim Mattes and colleagues found that microorganisms in the dark ocean, below 600 feet, absorb considerable amounts of carbon. The team discovered sulfur-oxidizing microbes dominating carbon fixation at hydrothermal vents, which could provide insights into global biogeochemical cycles.
Climate change projections suggest warming Antarctic seas could reduce krill growth habitat by up to 20%, affecting wildlife and fisheries. The Southern Ocean region, including South Georgia, is expected to be worst affected, with potential losses of up to 55% in krill habitats.
A three-year international study found that marine species are shifting their geographic distribution towards cooler regions due to warming oceans. This has led to changes in breeding patterns, life cycles, and potentially significant repercussions for human services dependent on these ecosystems.
Scientists from CSIRO and the University of NSW attribute rapid ocean warming to global greenhouse gas emissions and aerosol decline. Models show a 30-year delay in Indian Ocean warming due to aerosol levels, highlighting human-emitted aerosols' significant impact on remote ocean temperatures.
Research finds that 30% of excess energy from human-caused greenhouse effect warms the deep ocean, while a new study predicts an increase in hurricanes hitting western Europe as sea surface temperatures rise. Scientists also identify changes in wind patterns and volcanic eruptions as factors driving this warming trend.
Oceanic oxygen levels decrease as ice sheets melt, leading to accelerated denitrification and a shift in the ocean's nitrogen cycle. Phytoplankton growth and productivity are affected, potentially altering atmospheric carbon dioxide concentrations.
Researchers found that extensive warming on the Antarctic Peninsula occurs during its fall months, governed by atmospheric circulation patterns originating in the tropics. The autumn warming leads to a notable reduction in sea ice cover, resulting in warmer temperatures on nearby land in winter and spring.
A £3.2 million research study will investigate how climate warming affects North West Europe's shelf seas and their role in the global carbon cycle. The study aims to improve modeling systems for understanding ocean climate change, particularly focusing on the capacity of shelf seas to store carbon.
A 12,000-year-old fossil record suggests the Antarctic Peninsula's ice sheet was more vulnerable to collapse due to atmospheric warming than oceanic circulation. The study also found cyclic patterns in late Holocene atmospheric warming linked to El Niño-Southern Oscillation phenomenon.
Researchers predict that global warming will acidify saltwater sufficiently to make low-frequency sound travel twice as far as it currently does. This could lead to a clearer understanding of the sound environment of marine mammals and the effects of human activity on their habitats.
A new study reveals how warming waters in the Southern Ocean can connect with the movement of massive ice-sheets deep in the Antarctic interior. The research found that ocean warming can trigger increased flow of ice through narrow glaciers, causing inland sectors of the ice-sheet to become thinner and flow faster.
New research by Lawrence Livermore National Laboratory scientists reveals that human activities are the primary cause of global ocean warming over the past 50 years. The study analyzed observational and modeling uncertainties to confirm this conclusion.
A new study reveals a global ocean warming trend spanning at least 100 years, with an average increase of .33-degree Celsius in upper ocean temperatures. The research uses historical temperature readings from HMS Challenger's 1872-1876 voyage and modern data from the Argo program.
The research reveals that ocean acidification is happening at a faster rate than in the past 300 million years, with severe effects on marine organisms. Acidification harms shell-building species like corals and molluscs, as well as phytoplankton species, which are essential to the marine trophic network.
A Scripps Institution of Oceanography study reveals that corals exposed to cold temperatures suffer greater growth impairment and measurable damage compared to those subjected to heat. However, corals are able to adjust to cool conditions over time, whereas prolonged heat stress leads to severe bleaching and growth stoppage.
The Tasman Sea has become a global warming hotspot, with ocean temperatures rising two degrees warmer than 60 years ago due to intensified east-west winds and greenhouse gas emissions. A long-term monitoring network is needed to track these changes.
Marine life may need to relocate faster than land species due to climate warming, posing a significant conservation challenge. The rate at which marine life relocates depends on the distance it needs to travel to reach its preferred temperature conditions, with many areas having relatively little temperature variation.
A study published in Science reveals that animal and plant populations need to move at similar rates to keep up with climate change effects in the ocean and on land. The analysis shows that marine life would need to relocate fast, even in biodiversity hot spots like the coral triangle region.
A new analysis suggests that Earth's deep oceans can absorb enough heat to flatten the rate of global warming for periods of up to a decade. The study used computer simulations and found that ocean layers deeper than 1,000 feet are the main location of the 'missing heat' during these periods.
A new study suggests that the planet's deep oceans can absorb enough heat to flatten the rate of global warming for periods of up to a decade. The research, based on computer simulations of global climate, points to ocean layers deeper than 1,000 feet as the main location of the 'missing heat'.
New research suggests that warming ocean layers surrounding the Greenland and Antarctic ice sheets will melt underwater portions faster than previously thought. This would increase sea level rise more than already projected.
A new study predicts that global warming will limit access in certain Arctic areas but increase it in others, particularly for coastal communities and shipping concerns. Inland mining, timber, and small communities may be negatively affected by reduced road accessibility.
Researchers at the University of Georgia identified the biochemical pathway that controls how bacteria release sulfur compounds into the ocean and atmosphere, a discovery that could help mitigate global warming. The study found that the pathway is widespread among bacterioplankton in the ocean and non-marine environments.
Researchers found that colder temperatures in the Bering Sea led to an increase in larger zooplankton, such as copepods and krill, which pollock prefer to eat. This shift may impact the growth and survival of younger pollock fish.
A surprising analysis by Climate Central found that July temperatures were cooler than predicted, despite being above historical averages in northeast US cities. The study also highlights the projected long-term warming trend and its potential impact on heat stress and electricity supply.
A new study challenges the long-held critical depth hypothesis, which suggests that phytoplankton bloom in temperate oceans due to improving light conditions. Instead, researchers found that winter storms play a key role in creating blooms, and warmer ocean temperatures may actually curtail productivity.
A new study led by University of Colorado at Boulder indicates that rising sea levels in the Indian Ocean are partly caused by human-induced climate warming, threatening coastal areas and islands. The study suggests that the Indo-Pacific warm pool is amplifying regional sea rise changes, with potential far-reaching impacts on global cl...
Researchers developed a new mathematical model to understand bacterial community dynamics behind coral bleaching and disease. The models reveal how beneficial bacteria protect corals from pathogens when waters are normal, but switch to pathogenic bacteria when corals are stressed by elevated temperatures.
A University of Hawaii at Manoa research team has identified two distinct ocean temperature patterns that will impact regional climates, leading to increased or decreased rainfall in various regions. The findings suggest that certain areas may experience dramatic shifts in precipitation patterns, with potential consequences for global ...
Research papers published in Geophysical Research Letters highlight regional warming trends in Antarctica, improved models for shoreline loss, and the contribution of reservoirs to triggering devastating earthquakes. Scientists have developed new methods to analyze climate data, storm impacts on shorelines, and natural hazards.
NYU is part of a $10 million NSF grant to study the Antarctic Ice Sheet's response to global warming. The project aims to develop a numerical model that describes ocean and ice interactions.
A new study reveals that low-level stratiform clouds appear to dissipate as the ocean warms, indicating that changes in these clouds may enhance global warming. The research also suggests a critical role for weakening trade winds in reducing cloudiness.
The observed ocean warming has contributed significantly to global average sea level rise, with a 20mm increase over the past 53 years. The thermosteric component of sea level change is one of several factors affecting sea level, including glacier melting and freshwater transfer.
Unchecked global warming would lead to a dramatic expansion of low-oxygen areas in the ocean, affecting fisheries and ecosystems for thousands of years. The team's projections show that these oxygen minimum zones could expand much more still and invade the deep ocean.
A team of researchers attributes the sudden thinning of Jakobshavn Isbræ, one of Greenland's largest glaciers, to subsurface ocean warming and atmospheric changes. The study suggests that ocean temperatures may play a more significant role in glacier flow than previously thought.
A new study identifies a link between warming Indian Ocean and declining rainfall in eastern Africa, impacting food security. The team found that human-caused warming of the Indian Ocean leads to increased rainfall over the ocean, reducing onshore moisture flow and resulting in dry air over Africa.
New Australian research found ocean warming rates are 50% faster than previously reported, providing greater credibility to climate models. The study also improves estimates of sea-level rise and its contributions from glaciers, ice caps, and thermal expansion in the deep ocean.
A new study published in Nature finds that ocean temperatures and sea level increases between 1961 and 2003 were 50% larger than previously thought. The results show sea levels rose by 1.5 millimeters per year, equating to a 2-inch increase in ocean levels over 42 years.
Peter Glynn, a professor at the University of Miami's Rosenstiel School, has received the Provost's Award for Scholarly Activity for his groundbreaking research on coral reefs. His work highlights the impact of climate change on coral bleaching and death.
Rising greenhouse gas emissions are causing ocean warming, acidification, and altering circulation patterns, posing significant threats to coral reefs and other marine ecosystems. The panelists emphasize the need for drastic action to reduce emissions to mitigate these impacts.
Scientists at the University of Liverpool have found that natural variability in the Earth's atmosphere is masking the overall effect of global warming in the North Atlantic Ocean. Heat stored in the North Atlantic has a complex pattern, suggesting that natural changes in the atmosphere also play a role.
A 0.5°C increase in sea surface temperature is associated with a 40% increase in hurricane activity and frequency in the tropical North Atlantic region. The research, conducted by University College London scientists, quantifies the link between sea surface warming and hurricane activity for the first time.
A Duke University-led study found that North Atlantic Ocean surface waters warmed from 1950 to 2000 due to natural wind patterns called the North Atlantic Oscillation (NAO), not human-caused global warming. The subpolar regions cooled while subtropical and tropical waters warmed
The Arctic's natural 'sunscreen' is melting at an unprecedented rate due to record-breaking amounts of ice-free water, leading to sea surface temperatures rising by as much as 5 degrees C above average. This phenomenon can delay winter freeze-up and impact the growth of thick ice in the winter.
Rising sea-surface temperatures in the Barents Sea have led to a decline in winter ice cover over the past 26 years. The study found that warming ocean temperatures, driven by increasing greenhouse gases, are the primary cause of this trend. In contrast, Arctic pack ice is expected to continue its rapid decline due to atmospheric effects.
Research from Arizona State University highlights how global warming will drastically alter the world's fisheries, threatening human nutrition and species health. The study finds that changes in ocean temperatures and atmospheric conditions will affect fish stocks and habitats, leading to potential extinction of certain species.
A record-setting Antarctic ice core extracted during a recent drilling expedition provides unprecedented detail on the Ross Ice Shelf's history, indicating fluctuations of up to 50 times over the last 5 million years. The research project, ANDRILL, aims to understand the impact of global warming on oceans worldwide.