Articles tagged with Ocean Temperature
A new study suggests that irrigation may not cool the globe in the future, contrary to previous findings. The research team analyzed temperature and irrigation trends in California's Central Valley and found a clear cooling effect in agricultural areas, but one that has recently slowed down.
New research finds that cold-blooded Antarctic marine animals, such as the limpet, cannot efficiently grow or increase growth rates in warmer water. This suggests they may struggle to cope with predicted temperature increases, potentially affecting biodiversity.
A University of Utah study reveals that temperature differences within Earth's crust and upper mantle explain about half of North America's elevation. Coastal cities, including New York City and Boston, would be underwater if not for the buoyant effect of heat on rock, with elevations ranging from 1,427 to 3,756 feet below sea level.
Researchers warn that global warming is forcing gannets to search further afield for food, leaving their chicks vulnerable to attack. The birds' breeding success is declining as they compensate by flying faster, but their speed limit has been reached.
The Medusa hydrothermal vent field, discovered off Costa Rica, features hot iron-darkened water attracting unusual marine life. Researchers have found pink jellyfish, spiky tubeworm casings, and heat-tolerant organisms thriving in extreme conditions.
The Arctic sea-ice extent in March 2007 was the second lowest on satellite record, at 5.7 million square miles. Researchers attribute declining sea ice to rising greenhouse gases and strong natural variability.
Researchers argue that calculating a global temperature is mathematically impossible due to the complexity of the Earth's climate system. The concept relies on averaging multiple temperatures from different locations, which can lead to misleading conclusions about climate trends.
Researchers calculated the probability of periodicity in climate shifts, finding that they hit a beat 70% of the time. Simulations showed that if climate shifts were truly random, the actual regularity would likely be lower, making them unpredictable.
Glaciologist Lonnie Thompson warns that the Qori Kalis glacier in Peru may disappear within five years, with other ice tongues retreating globally. The Quelccaya Ice Cap, the largest body of ice in the tropics, is experiencing a slow but accelerating retreat, exceeding any other in at least 50 centuries.
Research reveals that warmer waters cause a deficiency in oxygen uptake and distribution, limiting fish populations. This study investigates the effect of water temperature on eelpout (Zoarces viviparus) physiology, showing a direct link between oxygen limitation and population density changes.
A new University of Colorado at Boulder study finds that small glaciers and ice caps are the largest contributors to global sea rise, with over half of the estimated 650 billion tons of ice lost annually coming from these sources. The study's results run contrary to public perception focusing on Antarctica and Greenland.
Research reveals the journeys of endangered adult females traveling thousands of miles across boundaries between countries, highlighting the need for a team effort in their conservation. The study's findings emphasize the importance of protecting these fragile populations from habitat destruction, bycatch, and other human impacts.
Research finds rapid changes in North Atlantic Ocean salinity linked to sudden shifts in Greenland temperatures and tropical rainfall patterns during the last ice age. This provides evidence that climate change can have a direct and rapid impact on ocean circulation and chemistry.
The Arctic sea ice minimum reached on Sept. 14 was the fourth lowest on record, with a decline of about 8.6 percent per decade. The ice has been declining at an area more than half the size of Ohio per year, threatening species like polar bears that depend on the ice for their livelihood.
Scientists track sooty shearwater migration patterns, revealing they don't follow a single route but instead focus on three major feeding hotspots. The birds' journeys take advantage of prevailing winds and productivity throughout the year.
New research uncovers factors triggering sex reversal in black sea bass, a key challenge for aquaculture. By studying hormones and enzymes, scientists aim to control sex change and improve breeding outcomes.
Researchers studying cod movements find that temperature changes may not limit adult cod migration patterns. The CODYSSEY project has tagged over 2500 cod, with 17% returning, shedding light on environmental factors affecting cod populations.
The Bering Sea ecosystem is responding to changes in Arctic climate, with shifts in species and ecosystem structure impacting native communities. The region's productivity and carbon balance are being altered, with potential implications for the role of the sea as a carbon sink.
Researchers have created iridium and platinum nitrides, which exhibit strong bonds that contribute to hardness and durability. These compounds may be used in durable coatings, substrates, conductors, and optoelectronic devices.
Scientists have retrieved high-resolution climate records from coral cores off the Tahiti coast, spanning 20,000 years and providing insights into sea level change and El Niño anomalies. The longest continuous coral core is 3.5 meters long, representing 350 years of growth, and contains valuable information on climate variability and p...
A study published by University of California, San Diego researchers suggests that climate change may be a key factor in the evolution of larger body size in certain animal species. The study found that deep-sea ostracodes increased in size as global ocean temperatures cooled over 40 million years.
Researchers at NC State have successfully transferred genes from a heat-tolerant sea microbe, Pyrococcus furiosus, into tobacco and Arabidopsis plants to enhance their resistance to extreme temperatures. The study's findings show promise for developing plants that can thrive in harsh conditions on Mars and other planets.
A team of scientists found that coral populations were healthy until the 1980s when they were killed by disease and high sea temperatures. Addressing global environmental issues like climate change is crucial for saving coral reefs.
A new NASA-funded study reveals that warmer air temperatures from greenhouse gas emissions may lead to an increase in sea ice volume in the Antarctic's Southern Ocean. This finding suggests a counterintuitive phenomenon where some of the melt in the Arctic is offset by increased sea ice volume in the Antarctic.
Cornell researchers presented several studies on ecological issues, including a new study that found fruit-eating fish in South America may become extinct due to overfishing. Another study revealed that coral-disease systems are sensitive to temperature fluctuations, with small changes having significant impacts on the ecosystem.
Scientists on a research cruise are assessing ocean temperatures and collecting water samples to identify levels of carbon dioxide. The study suggests that the jet stream's strength influences both weather patterns and ocean state, leading to recent major temperature changes in the Atlantic.
A study by Matthew Powell found that brachiopods living near the equator suffered high extinction rates during the late Paleozoic ice age, while those living at higher latitudes were more resilient. The research suggests that human-induced environmental changes may be causing modern marine species to become extinct.
A NASA study suggests that soot may be contributing to the changes observed near the North Pole, including accelerated sea ice and snow melting, as well as altering atmospheric temperatures. The research found that a significant portion of soot comes from South Asia, with smaller contributions from other regions.
Researchers have discovered an 8,200-year-old sea-level record that suggests a catastrophic freshwater flood into the North Atlantic 8,200 years ago led to a sudden climate change. The finding provides new evidence for ocean current disruption and adds credibility to a popular theory.
Researchers found that even minor temperature shifts in the deep sea can rapidly alter species richness and functional diversity. The study highlights the vulnerability of deep-sea fauna to environmental alteration, providing new insights into climate change's potential consequences.
The ocean absorbs a significant portion of carbon dioxide emitted by human activities, but research suggests that this process may be reaching its limits. By the middle of the century, increased CO2 levels in the ocean could lead to dramatic changes in pH and acidity, affecting marine life and ecosystems.
The global survey found that about half of anthropogenic CO2 is taken up by the upper 10% of the ocean. Rising CO2 levels may alter marine food webs and diversity, threatening calcifying organisms.
Alpha-hexachlorocyclohexane, a banned chemical, was detected in the atmosphere of Sable Island off Nova Scotia and Newfoundland. The study reveals that the chemical traveled from China and India to the Arctic Ocean before reaching Atlantic Canada.
Researchers are using high-tech tools to track marine animals and gather data on their movements, habitats, and interactions with human activities. This information is crucial for protecting these species from bycatch, collisions, and other harms.
Climate changes impact North Atlantic right whales by affecting zooplankton abundance, a crucial food source. Warmer conditions in the Gulf of Maine boost copepod populations, leading to improved reproductive success.
The study found a strong association between Adelie Penguin populations and the productivity of plankton in coastal polynyas. These 'oases' provide ideal conditions for phytoplankton blooms, which feed krill that are then eaten by penguins.
Climate change is altering marine ecosystems in the Northwest Mediterranean. A study found that warmer temperatures are replacing cold-loving species with those better adapted to warmer conditions. This shift highlights the significant threat global warming poses to Mediterranean biodiversity.
The study found that Arctic temperatures are increasing at a rate of 1.2 degrees Celsius per decade, leading to the decline of perennial sea ice. If the perennial ice cover disappears, it could profoundly impact summer shipping lanes, plankton blooms, ocean circulation systems, and global climate.
Researchers at Harbor Branch Oceanographic Institution successfully cultured sea fans on a large scale for the first time, marking a significant milestone in coral reef conservation. The project's results could reduce the recovery process by five to 10 years and pave the way for sustainable re-seeding of damaged reefs.