oceans

Plastic packaging waste on the beach. Illustration: depositphotos.com

Global study: Food and beverage packaging is a major source of plastic pollution on beaches

  • No comments
A study by One Earth, based on more than 5,000 beach surveys, found that food packaging, corks, and plastic bottles lead marine pollution.
A major ocean current system in the Atlantic Ocean, which helps regulate the Earth's climate, has been weakening for nearly 20 years. Credit: NOAA

A central Atlantic current has been weakening for almost 20 years, and the impact on weather could be global

  • No comments
New study presents direct observational evidence of a weakening of part of the Atlantic overturning current system. Researchers warn of possible impacts on European winters, rainfall, storms and sea level rise
The great white shark is one of the largest mesothermal fish that may face high energy demands and an increasing risk of overheating in warming oceans. Credit: Andrew Fox

Sharks and tuna may overheat in warming oceans

  • No comments
A study published in Science found that large, partially warm-blooded fish, including white sharks and tuna, consume almost four times as much energy as similarly sized warm-blooded fish.
Ocean currents. Illustration: depositphotos.com

For the first time: Artificial intelligence maps ocean currents from high-resolution satellite images

  • One response
The GOFLOW system, developed under the leadership of Tel Aviv University, allows for the identification of subtle flow movements in the ocean and may improve models of the climate crisis, storms, and heat and gas exchange between the sea and the atmosphere.
Climate crisis: Excess heat could erupt. Illustration: depositphotos.com

Report: Earth is out of balance, and heat trapped in the climate system has peaked

  • 8 תגובות
For the first time, the World Meteorological Organization has added the “Earth’s Energy Imbalance” index to its annual climate report — an index that illustrates how quickly the climate system is gaining heat.
A scanning electron microscope image of the benthic foraminifer Uvigerina peregrina, one of the species used in this study. The specimen was found in sediments that accumulated about 21,000 years ago in water depths of about 3 km off the coast of North Carolina. Credit Jack Wharton and Mark Stanley

Deep currents in the Atlantic Ocean continued to operate during the last ice age.

  • No comments
A study in Nature suggests that a critical flow system did not completely collapse under extreme conditions, sharpening the debate about transition thresholds today.
Microalgae from BarAlgae. Photo: University of Haifa

From high-tech to the ocean: Artificial intelligence that optimizes microalgae growth

  • One response
Efrat Kadosh, Director of Climate-Tech at the Maurice Kahn Marine Research Station at the University of Haifa, is leading the development of artificial intelligence models based on data from BarAlgae Farms – to stabilize, improve and transform the growth of
Climate crisis effects on humans. Illustration: depositphotos.com

Earth's climate turns out to be more fragile than expected – new study finds

  • No comments
Researchers present a new measure of carbon load on the climate system and warn: the land, sea, and air began to change as early as the 30s
Melting glaciers are slowing the Antarctic Circumpolar Current (ACC), the world's strongest ocean current, researchers have found. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio

The Great Ocean Slowdown: How Antarctic Ice Loss Is Reshaping the Climate

  • No comments
New research finds that melting ice in Antarctica is weakening the Antarctic Circumpolar Current (ACC) and could lead to worsening climate extremes, disrupting marine ecosystems, and reducing the ocean's ability to absorb carbon by 2050.
This artist's concept shows NASA's Europa Clipper spacecraft as it orbits Jupiter and passes over the icy moon Europa. The mission, scheduled to reach Jupiter in April 2030, will be the first to conduct an in-depth study of Europa. Credit: NASA/JPL-Caltech

NASA's Europa Clipper launches: A bold search for life on Jupiter's icy moon

  • One response
The largest spacecraft ever built for an interplanetary mission has begun its long journey to explore Europa, with the goal of uncovering the secrets of the ocean beneath the ice and possibly finding evidence of extraterrestrial life.
The Cambrian Bang. Illustration: depositphotos.com

New findings regarding the connection between the increase of oxygen in the atmosphere and the development of complex life

  • 3 תגובות
Hebrew University researchers have revealed new findings regarding the connection between the increase in oxygen in the atmosphere and oceans on Earth, and the development of complex life. The study indicates that the rise of oxygen occurred after the development of life
A study predicts the extension of the Strait of Gibraltar subduction zone into the Atlantic Ocean, which could create an Atlantic Ring of Fire within about 20 million years. This research sheds light on the dynamic nature of ocean life cycles and the formation of new reduction zones, using advanced computational models. It offers new insights into the activity of the subduction zone in Gibraltar and its implications for seismic activity, emphasizing the importance of preparedness and studying the process of ocean contraction as a key process in the geological evolution of the Earth. Credit: Mr Elliot Lim, CIRES &NOAA/NCEI

As the oceans close - new research indicates that the Atlantic Ocean will "soon" enter its sunset phase

  • 5 תגובות
Research shows for the first time how direct invasion of mitigation zones can occur. The 3D computational model, driven by gravity, predicts that the subduction zone currently under the Strait of Gibraltar will spread further
Diagram - structure of the Gulf of Eilat. Courtesy of the researchers

the good dust

Every year a dust storm occurs at the bottom of the Gulf of Eilat that may reduce global warming
This map depicts the global temperature anomalies for the meteorological summer in 2023 (June, July and August). It shows how much warmer or cooler different regions of the Earth were compared to the baseline average from 1951 to 1980: NASA Earth Observatory/Lauren Dauphin

Climate crisis dealt a strong blow: Summer 2023 was the warmest ever

  • 4 תגובות
This raw data is analyzed using methods that take into account the variable distance between temperature stations around the world and the effects of urban heat islands that may distort the calculations.
Different species of foraminifera. Illustration: depositphotos.com

The marine microorganisms that indicate climate change

What makes foraminifera species sensitive to heat?
Science website logo
SEARCH