Articles tagged with Earth Climate
A QUT study found that climate change believing southeast Queensland residents are more divided by socio-economic factors than political views. Climate change deniers predominantly have right-wing perspectives and are older and less educated.
The study found that fact-checkers in the US primarily assessed existence claims, while Australians focused on solutions. Effective fact-checking presentations included visual information, concise summaries, and clear verdicts. Researchers hope to expand their research to cover the role of fact-checking in COVID-19 and other topics.
Global carbon emissions have reached a record high, with no indication of a decline to limit global warming to 1.5°C. The Global Carbon Project projects total global CO2 emissions of 40.6 billion tonnes in 2022, fueled by fossil CO2 emissions that are projected to rise 1.0% compared to 2021.
MU researchers, including Jay J. Thelen and Dong Xu, are exploring genetic modification to increase seed oil production in camelina and pennycress for biofuel use in the aviation industry. The team aims to create a sustainable 'green energy' source as an alternative to petroleum-based fossil fuels.
Researchers used drones to monitor Waikīkī Beach, finding that wave energy from south swells and trade-wind generated waves drive erosion and accretion. The studies provide insights into beach behavior and help inform management of the coastline for ecological, societal, and economic sustainability.
Researchers extracted oxygen isotopes to study recent climate changes in the Third Pole region. The analysis revealed dramatic shifts in climate over the past 12,000 years, likely driven by population growth and agricultural development.
A study led by the University of Zurich found that diverse Arctic vegetation affects the land surface energy budget. The researchers linked vegetation types to energy exchange data from 64 measuring stations, revealing a significant difference in heat flux between various vegetation types and glaciers/grasslands.
A new study suggests that rising air temperatures amplify the effects of ocean warming on the Greenland ice sheet, leading to greater ice loss. The combination of warmer liquid and movement accelerates melting, similar to ice cubes in a drink being stirred.
Researchers found that the return of radiolarians, a tiny marine organism, helped restore habitable conditions after the massive extinction event. The study suggests that every microorganism plays a vital role in regulating biogeochemical cycles and conservation of the planet.
A new study predicts that global warming will shorten safe ice conditions on frozen lakes by 2-3 weeks over the next 80 years. This will have a significant impact on indigenous communities and regional economies that rely on ice roads.
A new study suggests that Earth's habitability could increase if Jupiter's orbit becomes more eccentric, leading to parts of the surface warming up and becoming habitable for multiple life forms. The researchers also found that this change in Jupiter's orbit could have implications for the search for habitable planets around other stars.
Oregon State University is leading a five-year national polar education and arts program, Polar STEAM, funded by the National Science Foundation. The program engages educators, artists, and writers in polar science activities to increase visibility and impact of scientific work in the Arctic and Antarctic.
A new study by University of Missouri and Webster University scientists finds climate change linked to decline of bumblebees in alpine regions. Warming temperatures are creating a longer growing season, allowing lower-elevation bees to migrate to alpine areas, where they struggle to adapt.
A special section in BioScience synthesizes insights from 40 years of long-term ecological research, highlighting the diversity of ecosystem responses to climate change. The study demonstrates that regional drivers, human activities, and interactions between climate drivers shape these responses.
Researchers from Colorado State University have made direct observations of ice nucleating particles in the central Arctic, revealing strong seasonality and seasonal changes. These findings provide crucial insights into the effects of climate change on clouds and precipitation patterns.
The 'Buen Aire Para Todos' project will create a new air quality monitoring system with stationary and mobile sensors, improving data on air quality for local residents. The project aims to expand community awareness, education, and outreach to help residents better understand air quality measurements.
A study predicts UK wine production will increase due to climate change, with areas in England and Wales becoming suitable for sparkling wine grape varieties. The research highlights the potential for high-quality still wine production, particularly for Pinot Noir and other disease-resistant varieties.
Scientists at the University of Copenhagen have discovered a new class of highly reactive chemical compounds called hydrotrioxides. Formed during atmospheric decomposition of substances like isoprene and dimethyl sulfide, these compounds are stable enough to react with other atmospheric compounds.
A new study projects that climate change will more than double the frequency of intense tropical cyclones globally by 2050, increasing maximum wind speeds by up to 20%. This will disproportionately affect low-income countries and regions that are not currently prone to these events.
Tiny zircons found in South Africa hold the oldest evidence of subduction, a key element of plate tectonics, dating back to around 3.8 billion years ago. This discovery provides new insights into when plate tectonics was set in motion and how it may have shaped Earth's surface and climate.
Research suggests that expansion of vegetation in the Northern Hemisphere led to a significant warming of global temperatures between 6,000 and 9,000 years ago. The findings align with paleoclimate proxy records and challenge previous models' limitations in accounting for vegetation changes.
A new study shows substantial increases in atmospheric thirst across the US Southwest, with warming temperatures accounting for 57% of the changes observed. The largest changes are centered over the Rio Grande region, where crops now require more water and can be expected to require even more in the future.
Researchers found that flash droughts are happening more quickly, with the fastest ones occurring within five days, affecting areas like South Asia, Southeast Asia, and central North America. The study highlights the importance of understanding and preparing for these events.
New Penn State research found that the maximum wet-bulb temperature for humans is lower than previously thought, at around 31°C in warm-humid environments. This finding has significant implications for planning and preparing for extreme heat events.
A new study reveals a significant shift in the Northern Hemisphere jet stream position, increasing by up to 330 km and speed by 8% during 1871-2011. This shift is linked to warming Arctic winters and decreased temperature gradients, with implications for climate predictions and storm activity.
Researchers found that forests' outermost edges can store more carbon than previously assumed. Trees on these edges grow faster due to reduced competition, taking in nearly twice as much CO2 as interior trees. Soils at forest edges also absorb more CO2, contradicting current ideas about conservation and urban forest value.
Government actions, such as road travel restrictions, significantly reduced NO2 concentrations and deaths in Europe. The study estimated that more than 800 deaths were avoided due to improved air quality.
Mariculture has the potential to deliver high-protein foodstuffs with a significantly reduced carbon footprint compared to terrestrial products. The authors suggest various ways to improve mariculture's sustainability, including supply chain improvements and cofarming practices that can lead to net reductions in CO2 emissions.
A recent study suggests that climate change in some regions is unavoidable even if CO2 levels are reduced. The intertropical convergence zone (ITCZ) shifts southwards when CO2 decreases, triggering persistent El Niño conditions and regional climate changes.
Researchers aim to extract a 1.5 million-year-old ice core, revealing information on temperature and greenhouse gas concentrations in the past atmosphere. The project will help scientists understand the evolution of climate and develop strategies for mitigating current changes.
Researchers found that during hothouse periods, Earth may have experienced cycles of dryness followed by massive rain storms. This unexpected atmospheric state sheds light on Earth's distant past and far-flung future, potentially helping to understand climates of exoplanets.
Researchers developed a tool to investigate cause of death when skeletonised remains are recovered, providing a breakthrough in forensic lightning pathology. The study identified unique markers of lightning damage deep within the human skeleton, allowing for recognition of lightning strikes even when only dry bone survives.
A Boston University researcher found that while many climate deniers are receptive to disinformation, some are also open to the science. Her study suggests that engaging with individuals most vulnerable to climate disinformation is crucial in stopping its spread.
Scientists discovered that volcanic arcs, including chains like the Andes and Cascades, played a crucial role in regulating atmospheric CO2 levels over the past 400 million years. This natural feedback mechanism helped maintain a stable climate, but recent human-driven emissions have disrupted this balance.
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.
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.
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.
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.