Articles tagged with Earth Climate
A geoscientific study suggests that the proliferation of marine animals with silicon skeletons and land plants altered the carbon-silicon cycle, changing Earth's climate regulation. The research used lithium isotope levels to trace the cycle over three billion years.
A new paleoclimate record covering the last 66 million years has significantly improved our understanding of climate variability and predictability. The study confirms four distinct climate modes: hothouse, warmhouse, coolhouse, and icehouse.
Researchers have found that Giant Clam shells from the western Pacific have clear and continuous daily growth bands, allowing them to record past extreme weather events. These ultra-high resolution records can provide valuable information on Paleoweather occurrences in days or even hours and minutes.
Bacterioplankton's reliance on vitamin B1 and its precursors has been found to be more significant than previously thought. This study highlights the crucial role of exogenous nutrient availability in supporting growth and nutrient cycling in aquatic ecosystems.
A new analysis projects a 4°C temperature increase by 2084, more severe than the 2°C threshold set by the Paris Agreement. This would lead to extreme weather events, ecosystem disruption, and societal threats.
The Tyler Prize honors the groundbreaking research of Dr. Falkowski, which reveals the critical role of tiny phytoplankton in solving climate change. Dr. McCarthy's leadership in global policy initiatives has informed significant climate change policies.
Oceanographers Paul Falkowski and James J. McCarthy have been awarded the prestigious Tyler Prize for Environmental Achievement for their decades-long efforts to understand and communicate the impacts of climate change. Their research, focusing on marine ecosystems and nutrient cycles, has significantly advanced our understanding of hu...
Scientists have developed a simple rule to predict when the Earth's climate warms out of an ice age, using astronomical changes in the Earth's orbit around the Sun. The model predicts interglacials occurring roughly every 100,000 years, which explains why we've been in a warm period for the last 11,000 years.
Researchers create a new method for generating truly random numbers using two weakly random sequences, offering higher levels of security for data encryption, electronic voting, and simulations. This breakthrough could improve cybersecurity and increase the accuracy of complex systems.
Researchers studied temperature measurements, ice core data, and ocean sediment cores to analyze fractal patterns in natural climate variations. They found that the natural climate is chaotic and can be difficult to predict, with greater fluctuations during ice ages.
The ACS Climate Science Toolkit was launched to enhance understanding and communication of climate change science, developed for scientists to educate the public. The toolkit provides resources, including a package of 'Climate Science Narratives,' for individual scientists to communicate with various audiences.
New research from the NEEM project in Greenland reveals that the Eemian period was around 8 degrees C warmer than today, with global sea levels four to eight meters higher. The ice sheet was less than half the total sea-level rise during this period.
Researchers have successfully reconstructed ancient climate change records over the last 1.5 million years by separating ocean temperatures from changes in global ice volume. This new dataset provides a more accurate picture of the Earth's climate system, shedding light on major shifts in climate patterns.
The Community Earth System Model (CESM) is a powerful new tool for studying climate change, enabling scientists to simulate the complex interactions of the atmosphere, oceans, and land surfaces. The CESM will help researchers better understand the impacts of global warming on ice sheets, tropical cyclones, and aerosols.
A pattern connecting changes in Earth's orbital cycle to climate fluctuations has been discovered by UCSB geologist Lorraine Lisiecki. She found a correlation between the timing of climate change and eccentricity, as well as glacial cycles, which suggests internal instability within the climate system.
Researchers found features in rocks from the Buck Reef Chert that suggest water temperatures were significantly lower than previous studies had suggested, making conditions for life easier. This discovery could change our understanding of the earliest forms of life on Earth and potentially reveal new ways to study the planet's history.
Researchers discover that tropical circulation changes in the Pacific Ocean, similar to El Niño, triggered a large expansion of polar ice sheets and altered Earth's climate. Local climatic changes in the tropics can produce global changes, highlighting the tropics' active role in controlling the Earth's climate.
Researchers used the Community Climate System Model (CCSM) to study the Permian extinction event, which saw 90-95% of marine species and 70% of terrestrial species die. The model found that warming ocean waters at higher latitudes due to rising CO2 levels led to a stratified ocean with little oxygen, making it deadly for marine life.
Climate scientists attribute observed global warming to a combination of natural and human activities, but removing long-term solar cycles from models reveals minimal impact on early 20th century warming, suggesting other influences may play a greater role.
Scientists found that removing long-term solar cycles from global climate models takes away about a tenth of a degree Celsius of early 20th century warming, suggesting other influences may play a greater role than the Sun's. The study adds to the puzzle of understanding complex relationships between the Sun and climate.
The new EPICA ice core provides a complete record of the past interglacial period, allowing scientists to study it in detail. This will help separate human-caused impacts from natural climate fluctuations, providing valuable insights into climate change and its effects.
Researchers at UC Davis and UC Santa Barbara have discovered a link between rapid changes in ocean carbon chemistry during the last ice age and shifts in ocean circulation. The study sheds light on how human-induced global warming may affect ocean currents, weather patterns, and climate worldwide.