Articles tagged with Ocean Warming
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.
New satellite data show that ocean warming is reducing phytoplankton growth, imperiling ocean fisheries and marine life. Phytoplankton are responsible for about the same amount of photosynthesis as all plants on land combined, making their decline a significant threat to the food chain.
A NASA study reveals the Earth is warming at a rate of 0.2° Celsius per decade, pushing global temperatures to levels not seen in thousands of years. This rapid warming trend is forcing species migration and posing a significant threat to biodiversity.
A new study reveals a 3.5% weakening of the Walker circulation since the mid-1800s, with potential for another 10% reduction by 2100 due to human activities. The slowdown may intensify and impact El Niño events and marine productivity in tropical oceans.
Scientists have detected a significant increase in glacier quakes and calving events in Greenland, suggesting that the ice is accelerating towards the sea. The researchers hypothesize that the ice is slipping on growing pockets of meltwater, which could be triggered by calving events or stick-slip processes.
Researchers found that volcanic aerosols can cool the ocean surface by up to .037 degrees Celsius, reducing sea level rise by several centimeters. The cooling effect can persist for decades, offsetting human-induced warming and showing a significant impact of volcanoes on climate.
A peer-reviewed study published in Science finds a complex warming signal in world oceans over the past 40 years. The signal is of human origin and cannot be explained by natural variability or solar/volcanic forcing.
A study by Oregon State University suggests that ocean currents could disrupt the marine food chain, leading to a decline in phytoplankton productivity. The Atlantic Conveyer current, which warms Europe, is a critical component of this process, and its disruption could have far-reaching consequences for global food security.
A new study by Scripps Institution uses computer models and real-world data to capture signals of human-produced warming in the oceans. The results show that the warming is likely caused by human activities, with a high degree of confidence exceeding 95%. This finding has significant implications for regional water supplies, including ...
Researchers find steady increase in Arctic river discharges since the 1960s, with annual rate of increase being 8.73 cubic kilometers per year. Human activity plays a major role in this trend, which is expected to intensify the global hydrological cycle.
A new study contradicts previous predictions that coral reefs will suffer large declines by 2100 due to ocean warming. Instead, the research finds that coral reef calcification rates may increase by up to 35% by 2100, potentially exceeding pre-industrial levels.
A study led by University of Central Florida researchers found that loggerhead sea turtles are laying eggs 10 days earlier than in the past, with near-shore ocean temperatures increasing by nearly 1.5 degrees Fahrenheit between 1989 and 2003. This change raises concerns about the turtles' food supplies and hatchling survival rates.
A new study by Scripps researchers reveals that phytoplankton capture and absorb solar radiation, contributing to a global warming of 0.1-0.6 degrees Fahrenheit. The findings challenge iron fertilization efforts aimed at reducing global warming, suggesting this approach may actually contribute to warming the ocean.
A study using satellite ocean color data has shed light on the spring bloom of phytoplankton in the North Atlantic, a critical factor in the carbon cycle and global warming. The research found that simple models can accurately predict the timing of the bloom, with plankton animals and bacteria playing a key role in its duration.
A team of researchers has found that the continents have warmed significantly over the past half-century, similar to the warming of the oceans, atmosphere, and ice. The study used temperature readings from six continents to reconstruct a temperature history for the Earth's surface over the past 500 years.
A Scripps Institution of Oceanography study reveals a significant warming trend in the Southern Ocean over the last 50 years, with temperatures rising nearly double the global average. The research suggests that this region may be responding more rapidly to climate change than previously thought.
A recent deep-sea drilling expedition off Japan has revealed that vast areas of the Pacific Ocean were low in oxygen for periods of up to a million years each. The expedition, which lasted two months, uncovered evidence of global warming events more common than previously thought, with some occurring every thousand years.
The catastrophic draining of two gigantic glacial lakes in Canada's Hudson Bay region led to the most abrupt, widespread cold spell on Earth during the last 10,000 years. Temperatures dropped by as much as 15 degrees Fahrenheit in central Greenland and by nearly 6 degrees F in Western Europe.