All articles tagged with #oceans
Scientists from NOAA have solved the two-mile-deep “golden orb” mystery by identifying it as a relic of the giant deep-sea anemone Relicanthus daphneae, after years of study that included DNA sequencing and whole-genome analysis; the orb was not an egg or alien but remains of tissue attached to the rock substrate, underscoring how much there is still to learn about the ocean’s depths.
MIT and Woods Hole researchers unveiled a generalized wave-model showing that ocean waves on alien seas (like Titan’s methane/ethane lakes) can be dramatically different from Earth’s, driven by gravity, liquid composition, and atmospheric density; on Titan, simulations predict tall, slow-moving waves due to its low gravity and thick atmosphere, reshaping expectations for shoreline erosion, sediment transport, and the design of future landers or floating probes.
The World Meteorological Organization’s State of the Global Climate report warns Earth is in a climate emergency, with the planet’s energy imbalance at a record high as greenhouse gas concentrations trap more heat; heat is accumulating primarily in the oceans, driving record temperatures and increasing droughts, heatwaves, floods and other impacts, underscoring the need for a rapid shift to renewable energy to protect climate and security.
The World Meteorological Organization’s 2025 State of the Climate report shows record CO2 levels, the hottest years on record, and heat-stored oceans driving sea-level rise and ice loss, with extreme weather increasingly linked to human emissions. It highlights Australia’s high per‑capita emissions and urges faster decarbonisation and greater carbon removal to reach net-zero by 2050; even then, climate impacts will persist, so cutting emissions and boosting renewables are essential to limit warming.
The World Meteorological Organization warns that Earth's energy imbalance has reached a record high, with about 91% of excess heat absorbed by the oceans, driving unprecedented ocean warming and higher surface temperatures. The period 2015–2025 was the hottest on record, and a shift from La Niña to El Niño could push temperatures even higher, underscoring the urgent need for climate action.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.