A Yale-led research team has picked a side in the “Snowball Earth” debate over the possible cause of planet-wide deep freeze events that occurred in the distant past.
Climate change
Posted inBiogeochemical Cycles & Geobiology, Extinction events, Fossils & Paleontology, Press Release, Water/Hycean Worlds & Oceanography
Oxygen Increased In Earth’s Tropical Ocean During The Paleocene-Eocene Thermal Maximum
Oxygenation in the tropical North Pacific Ocean increased during a warm climatic interval that occurred roughly 56 million years ago, despite high global temperatures, according to a new study.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Fossils & Paleontology, Gaia - Planetary Perspectives, Habitable Zones, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Water/Hycean Worlds & Oceanography
Searching For Clues In The History Book Of Earth’s Oceans
Oxygen is fundamental to sustaining life on Earth. The ocean gets its oxygen from its uppermost layers in contact with the atmosphere. As our planet continues to warm, the ocean […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Habitable Zones, Press Release, Stellar Cartography
Stellar Cartography: Passing Stars Altered Orbital Changes For Earth And Other Planets
Stars that pass by our Solar System have altered the long-term orbital evolution of planets, including Earth, and by extension modified our climate.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Fossils & Paleontology, Microbiology & Virology, Origin & Evolution of Life, Status Report, Stellar Cartography, Water/Hycean Worlds & Oceanography
Cosmic Radiation Drives Quasi-periodic Changes In The Diversity Of Siliceous Marine Microplankton
Radiolarians are significant contributors to the oceanic primary productivity and the global silica cycle in the last 500 Myr. Their diversity throughout the Phanerozoic shows periodic fluctuations.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Gaia - Planetary Perspectives, Status Report, Stellar Cartography
Passing Stars As An Important Driver of Paleoclimate And The Solar System’s Orbital Evolution
Reconstructions of the paleoclimate indicate that ancient climatic fluctuations on Earth are often correlated with variations in its orbital elements.
Posted inArctic / Antarctic / Alpine, Astrogeology, Biogeochemical Cycles & Geobiology, Cryobiology, Extinction events, Gaia - Planetary Perspectives, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Press Release
What Turned Earth Into A Giant Snowball 700 Million Years Ago?
Australian geologists have used plate tectonic modelling to determine what most likely caused an extreme ice-age climate in Earth’s history, more than 700 million years ago.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Habitable Zones, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Status Report, Venus
Latitudinal Variation of Clouds’ Structure Responsible for Venus’ Cold Collar
Global Climate Models (GCM) are very useful tools to study theoretically the general dynamics and specific phenomena in planetary atmospheres.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Press Release
Geoscientists Map Changes In Earth’s Atmospheric CO2 Over The Past 66 Million Years
Today atmospheric carbon dioxide is at its highest level in at least several million years thanks to widespread combustion of fossil fuels by humans over the past couple centuries.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Press Release
Our Warming Planet Is Evolving Stronger Hurricanes/Typhoons/Cyclones
For more than 50 years, the National Hurricane Center has used the Saffir-Simpson Windscale to communicate the risk of property damage; it labels a hurricane on a scale from Category […]