Tag

Oceans

All articles tagged with #oceans

science1 day ago•261 min saved

Ocean Deoxygenation Emerges as Earth's 10th Planetary Boundary

Scientists argue aquatic deoxygenation could be Earth’s 10th tipping point, supplementing the existing Planetary Boundaries. Warming temperatures and nutrient runoff are reducing dissolved oxygen across lakes, reservoirs, and oceans, with notable declines such as 40% oxygen loss in midwaters off California since 1960. If widespread, this trend threatens marine life, fisheries, and global climate feedbacks, underscoring the need to cut emissions and curb nutrient pollution to safeguard ecosystems and economies.

via AOL.com|

#aquatic-deoxygenation #climate-change #ecosystems

environment3 days ago•18 min saved

Ocean-friendly packaging: plant-based cmcsp plastic dissolves in seawater within hours

Researchers in Japan developed a plant-based plastic called cmcsp, made from cellulose, that stays strong during use but dissolves completely in seawater within hours, leaving no microplastics and offering a potential new packaging option. The material forms a cross-linked network stabilized by salt bridges and a plasticizer; seawater ions disrupt these bonds to trigger dissolution, with a thin barrier coating slowing breakdown during use. While the approach shows promise and can be processed in water-based systems, scaling, recycling dissolved components, and real-world disposal remain challenges, and it is not a universal solution to plastic pollution.

via Earth.com|

#environment #materials-science #oceans

science4 months ago•2 min saved

Satellites Capture Record Ocean Waves Fueled by Storm

Satellites have recorded the largest ocean swells ever observed from space, caused by storms like Storm Eddie, which generated waves up to 65 feet that traveled thousands of miles, carrying storm energy across oceans and impacting distant shores, providing new insights into wave dynamics and storm strength.

via Space|

#esa #oceans #satellites

science5 months ago•2 min saved

Scientists Discover $2 Quadrillion Gold Reserve in Oceans, But Extraction Challenges Remain

There are approximately 20 million tons of gold dissolved in Earth's oceans, worth around $2 quadrillion, but extracting it remains a significant technological and financial challenge, with current efforts focusing on industrial waste recovery and future possibilities including space mining.

via WION|

#extraction #gold #mining

world5 months ago•2 min saved

Scientists Confirm Earth's Fifth Ocean

Earth has five oceans, with the Southern Ocean officially recognized in 2021 by National Geographic, defined by the Antarctic Circumpolar Current rather than land boundaries, highlighting its ecological importance and the impact of climate change on its future.

via IFLScience|

#climate-change #conservation #geography

science7 months ago•3 min saved

Where the Pacific and Atlantic Oceans Converge

The Pacific and Atlantic Oceans meet off South America and do mix, despite appearances of a visible line due to differences in temperature, salinity, and sediment. Factors like climate change and pollution influence the rate of mixing, and misleading photos have circulated online, but the waters eventually blend together.

via Boy Genius Report|

#atlantic #climate-change #oceans

science8 months ago•5 min saved

Earth's Heat Trap Doubled in 20 Years, Signaling Accelerated Climate Change

A recent study warns that Earth's energy imbalance has doubled over the past 20 years, surpassing climate model predictions, primarily due to changes in cloud cover and increased greenhouse gases, indicating accelerated global warming and potential for more severe climate impacts.

via ScienceAlert|

#climate-change #climate-models #earths-energy-imbalance

world8 months ago•3 min saved

Prince William and Attenborough Urge Action to Save the Oceans

Prince William emphasized the urgent need to protect the world's oceans, highlighting their vital role in sustaining life and the threats they face from climate change, pollution, and overfishing, while calling for global action and investment at the Monaco Oceans summit.

via BBC|

#blue-economy #climate-change #ocean-protection

environment8 months ago•4 min saved

Prince William and David Attenborough Unite to Advocate for Ocean Conservation

Prince William will speak at a Monaco forum on World Oceans Day to rally global action and investment for ocean protection, emphasizing the importance of sustainable solutions and collaboration among environmentalists, investors, and world leaders, with a focus on innovative projects like CoralVita that aim to restore marine ecosystems.

via BBC|

#earthshot-prize #environment #marine-conservation

science9 months ago•2 min saved

One-Fifth of Earth's Oceans Have Darkened, Endangering Marine Life

A recent study reveals that Earth's oceans have darkened over the past two decades, reducing the depth of the photic zone where marine life depends on light, potentially threatening marine ecosystems, food webs, and global fisheries, with climate change and ocean currents likely contributing to this phenomenon.

via Fox News|

#climate-change #darkening #marine-life

science1 year ago•3 min saved

Scientist Unveils Deep Ocean Secrets of Uranus and Neptune

A recent study suggests that Uranus and Neptune may have vast oceans up to 5,000 miles deep beneath their atmospheres, potentially reshaping our understanding of these ice giants and their capacity to harbor life. Led by Professor Burkhard Militzer, the research used advanced computer simulations to reveal a layered structure within these planets, which could explain their unique magnetic fields. This discovery has significant implications for the search for extraterrestrial life, as similar gas giants are common in the Milky Way. Future missions to these planets could confirm these findings.

via Indian Defence Review|

#extraterrestrial-life #neptune #oceans

science1 year ago•3 min saved

Wobbles May Reveal Hidden Oceans on Uranus' Moons

NASA is planning a mission to explore the possibility of hidden liquid oceans beneath the moons of Uranus, which could provide insights into the potential for life beyond Earth. The mission, still in the conceptual stage, would use a spacecraft to measure the wobbles of Uranus's moons, as moons with internal oceans tend to sway more due to the liquid inside. This method has previously been used to confirm an ocean on Saturn's moon Enceladus. Discovering such oceans could expand our understanding of where life might exist in the galaxy.

via Space.com|

#moons #nasa #oceans

science1 year ago•4 min saved

Unveiling Hidden Oceans on Uranus and Neptune: A New Frontier

Researchers at the University of Texas Institute for Geophysics have developed a computer model to detect potential liquid water oceans beneath the icy surfaces of Uranus's moons, such as Ariel. This model analyzes the wobbles in a moon's spin to determine its internal composition, which could indicate the presence of subsurface oceans. The findings could significantly impact our understanding of where life might exist in the universe, as similar techniques have confirmed oceans on Saturn's moon Enceladus. The research aims to aid future NASA missions to Uranus in detecting these hidden oceans.

via Phys.org|

#moons #nasa #oceans

science1 year ago

Unveiling the Mysteries of Uranus and Neptune: Oceans, Magnetism, and Temperature Shifts

Recent studies suggest that Uranus and Neptune may harbor vast oceans beneath their icy surfaces, challenging previous assumptions about these distant planets. This discovery could have significant implications for our understanding of the solar system and the potential for life beyond Earth.

via The New York Times|

#astronomy #neptune #oceans

space-science2 years ago•4 min saved

"Potential Warm Oceans on Dwarf Planets at Solar System's Edge"

Scientists have discovered evidence suggesting that dwarf planets Eris and Makemake, located in the Kuiper Belt, may have warm oceans beneath their frozen surfaces. Data from the James Webb Space Telescope revealed isotope ratios in methane on their surfaces consistent with internal heating, indicating the presence of potential subsurface oceans. These findings challenge previous assumptions about the dynamics of the outer Solar System and suggest that conditions for microbial marine life might exist in the Kuiper Belt, making it more dynamic and potentially hospitable than previously thought.

via ScienceAlert|

#dwarf-planets #james-webb-space-telescope #kuiper-belt