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How extratropical ocean-atmosphere interactions can contribute to the variability of jet streams in the Northern Hemisphere

Researchers from Kyushu University found that ocean-atmosphere coupling enhances teleconnection patterns, leading to more meandering jet streams and extreme weather events. The study highlights the significance of extratropical ocean-atmosphere interactions in climate variability.

SourceKyushu University·JournalCommunications Earth & Environment·TypeComputational simulation/modeling·DateMar 28, 2024

Eight new deep-sea species of marine sponges discovered

Researchers at Uppsala University have discovered eight new deep-sea species of marine sponges in the Balearic Islands, increasing the ecological importance of the region. The study reveals a strong case for the inclusion of underwater mountains and caves within the Natura 2000 Network, emphasizing the need for conservation efforts.

SourceUppsala University·JournalPeerJ·TypeObservational study·DateMar 7, 2024

New ‘digital twin’ Earth technology could help predict water-based natural disasters before they strike

Scientists create detailed models of the terrestrial water cycle using high-resolution satellite data to predict floods, droughts, and other extreme events. The Digital Twin Earth Hydrology Platform allows for interactive simulations and visualizations to enhance flood and landslide prediction and optimize water resource management.

SourceFrontiers·JournalFrontiers in Science·TypeComputational simulation/modeling·DateMar 5, 2024

Ice shell thickness reveals water temperature on ocean worlds

Researchers at Cornell University have devised a novel way to determine ocean temperatures of distant worlds based on the thickness of their ice shells. This technique can be used to enhance NASA's mission findings about Europa and Enceladus, two Jovian and Saturnian moons that could potentially support life.

SourceCornell University·JournalJournal of Geophysical Research Planets·DateFeb 29, 2024

Earth as a test object

The study, published in The Astrophysical Journal, tested the future LIFE mission's capabilities on real spectra using data from NASA's Aqua Earth observation satellite. It demonstrated that a space telescope like LIFE could detect signs of a temperate, habitable world on Earth-like exoplanets.

SourceETH Zurich·JournalThe Astrophysical Journal·DateFeb 27, 2024

The ties that bind

A common mineral in red soils, goethite locks away trace metals over time, rendering them unavailable for plants and animals. The study found that up to 70% of nickel was non-recoverable and only 8% of cadmium was irreversibly bound.

SourceWashington University in St. Louis·JournalEnvironmental Science & Technology·DateFeb 15, 2024

Japan's electric vehicle transition by 2035 may be insufficient to combat the climate crisis, but there are solutions

A team of researchers at Kyushu University found that Japan's current policy may not be enough to reduce CO2 emissions and achieve decarbonization goals. To address this, the government must extend vehicle longevity, invest in a cleaner energy mix, and decarbonize the supply chain.

SourceKyushu University·JournalJournal of Cleaner Production·TypeComputational simulation/modeling·DateFeb 7, 2024

Records of cometary dust hitting the asteroid Ryugu

Researchers have discovered melt splashes on Ryugu samples containing silicate glasses with voids and small inclusions of spherical iron sulfides. The chemical compositions suggest that Ryugu's hydrous silicates mixed with cometary dust, indicating the transport of primitive organic matter from space to Earth.

SourceTohoku University·JournalScience Advances·DateJan 22, 2024

The evolution of photosynthesis better documented thanks to the discovery of the oldest thylakoids in fossil cyanobacteria

Researchers have identified the oldest thylakoid membranes, 1.2 billion years older than previously known, in 1.75 billion-year-old fossil cyanobacteria. This discovery provides a new approach to understand the early diversification of life and the role of cyanobacteria in the Great Oxygenation Event.

SourceUniversity of Liège·JournalNature·TypeImaging analysis·DateJan 5, 2024

Exoplanets’climate – it takes nothing to switch from habitable to hell

Scientists simulated the runaway greenhouse effect, transforming habitable climates into hostile environments, with significant changes in atmospheric structure and cloud coverage. The study provides key insights for the search of life elsewhere, as it demonstrates a critical water vapor threshold beyond which a planet cannot cool down.

SourceUniversité de Genève·JournalAstronomy and Astrophysics·TypeNews article·DateDec 18, 2023

Tropical ice cores offer deeper insights into Earth’s temperature record

Scientists at Ohio State University discovered that tropical ice cores can provide accurate measurements of surface global mean temperature. The study found that the temperature in the middle and upper troposphere cooled by 7.35 degrees Celsius during the Earth's glacial period, shedding light on new theories about climate dynamics.

SourceOhio State University·JournalScience Advances·TypeExperimental study·DateDec 14, 2023

A new force of nature is reshaping this planet

Erle Ellis, professor of geography and environmental systems, argues that human societies have developed unprecedented capabilities to scale up and transform ecological systems. However, these advancements often come with negative environmental consequences, such as climate change and species extinctions.

SourceUniversity of Maryland Baltimore County·JournalPhilosophical Transactions of the Royal Society B Biological Sciences·TypeCommentary/editorial·DateDec 14, 2023

Molecular fossils shed light on ancient life

Researchers have discovered lipid fossils in ancient rocks, providing clues about the evolution of life. The findings suggest that a shift in animal feeding strategies occurred around 1.6 billion years ago, with some species abandoning phytosterol production as they obtained this nutrient from algae.

SourceUniversity of California - Davis·JournalNature Communications·TypeExperimental study·DateDec 7, 2023

Mysteries of Earth’s ancient mass extinction event revealed

A team led by USC Dornsife researchers has uncovered stark differences in the impact of a 200-million-year-old mass extinction event on marine and terrestrial ecosystems. The study found that land-based ecosystems were hit harder, with nearly 96% of species going extinct, while marine ecosystems showed resilience with only 71% of gener...

SourceUniversity of Southern California·JournalProceedings of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateDec 6, 2023

Antarctica's ancient ice sheets foreshadow dynamic changes in Earth’s future

Researchers analyzed Antarctic sediment records to understand past ice sheet behavior, finding frequent and rapid growth and recession cycles over thousands of years. The study suggests that climate factors beyond Earth's orbit may trigger these changes, potentially leading to unexpected ice sheet dynamics in the coming centuries.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·TypeMeta-analysis·DateNov 30, 2023

Study sheds light on how Earth cycles fossil carbon

Researchers use rhenium as a proxy for carbon to quantify the rate of fossil carbon dioxide release into the atmosphere. The study found that high rates of carbon breakdown persist from mountaintop to floodplain, offering valuable insights into the planet's history and response to climate challenges.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateNov 14, 2023

Faster Arctic warming hastens 2C rise by eight years

A new modelling study led by UCL researchers finds that faster Arctic warming will breach the global 1.5C and 2C temperature thresholds five and eight years earlier than expected. This accelerated warming adds substantial uncertainty to climate forecasts, highlighting the need for more extensive monitoring of temperatures in the region.

SourceUniversity College London·JournalEarth System Dynamics·TypeComputational simulation/modeling·DateNov 13, 2023