Articles tagged with Climate Systems
Researchers found that warmer soil releases less carbon, but coarse-textured soils are more vulnerable to climate change. The study's findings highlight the importance of understanding soil types and their impact on carbon storage.
A new data-model study suggests that the Antarctic Ice Sheet's tipping point was reached within a decade, leading to centuries of ice mass loss and potential irreversible ice retreat. The research team analyzed sediment cores and computer models to identify evidence of post-glacial tipping points in the past.
Researchers developed an automated method to detect and date abrupt climate events in paleoclimatic data, facilitating the study of climate tipping points in the past. The new tool can help establish chronology of close events and eliminate uncertainties during comparisons of different paleo records.
A new study from UMass Amherst suggests that changing land-use patterns in the greater Narragansett watershed can help mitigate the effects of climate change. The research found that expanding forest cover and investing in green infrastructure, such as rain gardens and living roofs, can reduce surface runoff and nutrient loading.
Climate scientists have identified abrupt transitions in ice core records using a new statistical method. The method analyzes the ratio of two oxygen isotopes to determine whether changes are due to noise or significant climactic shifts.
A new study suggests that UK plant-based alternative food consumption has nearly doubled over the past decade, with younger generations and women being more likely to adopt this diet. The research found that plant-based milks were the most popular among the UK population, followed by vegan sausages and vegetable burgers.
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.
Research finds climate stabilized due to increased rock weathering and erosion, which converts CO2 into insoluble carbonate; this process took 20,000-50,000 years. Lithium isotope analysis supports theory, showing increased weathering and erosion during Paleocene-Eocene Thermal Maximum.
Health professionals can influence change through simple behavioral choices and introducing climate discussions, while also making healthcare more sustainable. The BMJ calls for both individual action and organizational responsibility to address the climate crisis.
Researchers developed an AI algorithm that can assess climate change tipping points, predicting rapid or irreversible change in systems. The new approach can detect features of tipping points common to various complex systems, including ecology, epidemiology, and markets.
The Copernicus Ocean State Report reveals record low Arctic ice levels, with a 90% reduction in average sea ice thickness in the Barents Sea. The report also highlights extreme variability in ocean temperatures and oxygen levels, posing significant challenges for marine ecosystems.
Researchers from the University of Tsukuba found that warm sea surface temperature conditions in the Indian Ocean contribute to anomalous weather events in East Asia, including record-breaking rainfall and severe flooding. The study suggests a link between warming Indian Ocean conditions and stagnation of the Meiyu-Baiu rainband.
Researchers argue that improving policy analysis methods can lead to better decisions, particularly for transformative policies like climate change. A new framework focuses on evaluating risks, opportunities, and resilience, rather than just costs and benefits.
A new study using Argo system ocean temperature data refines climate modeling predictions by identifying models most consistent with observations. The analysis shows that land and air temperatures only tell part of the story, with oceans storing 90% of the planet's heat.
Research suggests that climate-caused disruptions to the jet stream's position and intensity could lead to severe weather-related consequences. The study's findings imply that continued warming could cause significant deviations from the norm, rendering the jet stream drastically different within a matter of decades.
Researchers found that predators play a crucial role in regulating small mammal populations, contradicting previous assumptions about the importance of herbivore-plant interactions. The study's unique Arctic vole ecosystem provided a simple model to test predator-prey dynamics, shedding light on population cycles and climate variability.
A new study published in Climate Dynamics analysis observational data and a large climate model found that the Earth's 11-year cycle is out of sync with solar fluctuations. The findings refute climate skeptics' claims that the sun plays a major role in global warming.
A study by Matthew Auer highlights the need for community-led wildfire protection plans to address growing threats, particularly among low-income households. These plans can provide educational resources, fire-resistant home construction, and access to funding.
A new study by Portland State University assesses strategies for the Hood River watershed to adapt to climate change. The researchers found that a combination of water banking, infrastructure improvements, and reflexive feedback mechanisms can achieve overall resilience.
A new study found that global marine ecosystem models differ widely in their representation of key processes, leading to underestimation of climate change impacts. Marine ecosystem models generally agree on biomass decline but disagree on magnitude and location across the world's oceans through the 21st century.
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 Purdue University study suggests that the eastern half of the US is a hotspot for severe thunderstorms due to high terrain, while the Gulf of Mexico plays a relatively weak role. Removing the Gulf would shift storm patterns eastward into Illinois and reduce them over southern Texas.
A new study finds that female walruses in the Chukchi Sea rely on biomarkers from algae growing within sea ice as a primary food source. The researchers tracked these markers using liver tissues from harvested animals, revealing a difference in foraging behavior between males and females.
A new warning system has been proposed to address increasing heat waves due to climate change, taking into account evolving heat thresholds and longer hot seasons. The system aims to prevent heat-related mortality outside typical heat wave periods through health alerts.
Researchers at Princeton University and GFDL found that the Earth's energy balance sheet is out of equilibrium, leading to rising temperatures and extreme weather events. The study suggests that human activities are responsible for the observed changes in the energy imbalance.
A new global analysis reveals that greenhouse-gas emissions from food systems have long been systematically underestimated, with the equivalent of 16 billion metric tons of carbon dioxide produced in 2018. The study highlights the need for integrating research with efforts to reduce emissions and emphasizes the importance of considerin...
The study introduces a dynamic approach to complement existing climate mitigation scenarios, taking into account the financial system's enabling or hampering role. This framework helps investors adjust their expectations and reallocate capital to low-carbon investments, leading to a smoother transition to a sustainable economy.
A new framework connects climate mitigation scenarios and financial risk assessment, enabling a more accurate understanding of the financial system's impact on the transition. By integrating climate-financial risk assessments into IAMs, investors' expectations can be adjusted to enable or hamper the low-carbon transition.
The AgMIP Regional Integrated Assessment methodology provides a stakeholder-driven approach to understanding climate change impacts on agriculture. The project assesses the most vulnerable groups of farmers and develops effective solutions for adaptation and resilience planning.
A novel radiant cooling system combines special panels with natural ventilation to minimize disease transmission and save energy in cities worldwide. By increasing outdoor air flow rates, this alternative solution ensures building occupants remain comfortable and rooms are adequately refreshed.
Researchers analyzed ice-core data to understand Dansgaard-Oeschger events, finding that changes in ocean currents, sea-ice, and wind patterns were intertwined and likely triggered each other. This discovery has implications for predicting future climate change and highlights the importance of limiting anthropogenic emissions.
A study predicts that increasing ice melt could lead to abrupt changes in the Atlantic Meridional Overturning Circulation (AMOC), potentially collapsing it even if freshwater influx remains below a critical threshold. The system's chaotic dynamics make predicting tipping points challenging.
Researchers recommend integrating modelling tools and empirical data to gain a comprehensive understanding of systemic risks. Effective governance requires interdisciplinary cooperation, close monitoring systems, and public stakeholder participation to ensure adaptable and inclusive management of these complex risks.
The article emphasizes the importance of climate resilience in urban energy systems to address climate change and extreme events. Nik and colleagues provide an overview of current progress in adapting urban energy systems to climate change, highlighting limitations in existing approaches.
A study categorizes innovations with potential to transform the food system, including artificial meat and fine-tuned photosynthesis. To succeed, these innovations require policy conditions and social acceptance.
An international team of scientists has proposed a method to design climate-resilient energy systems. The study found that urban areas are expected to hold more than two-thirds of the world's population by 2050, and distributed energy systems will play a vital role in climate change adaptation and mitigation.
A new method predicts how extreme climate events affect energy systems with a focus on renewable energy sources. Future climate events can have a considerable impact, leading to power supply reliability reductions of up to 16%. Collaboration between energy system experts and climate researchers is necessary for optimization.
Researchers argue that coincidences displace ice ages from predictions, making them harder to predict and potentially leading to abrupt changes. The analysis shows that the climate system is more chaotic than expected, with underlying periodic processes but also significant background noise.
Researchers propose scaling up international initiatives to pool human and computational resources, accelerating climate modeling advancements. This approach aims to better understand regional climate systems, ultimately informing effective climate change mitigation strategies.
A survey of US adults found a positive correlation between systems thinking and climate change beliefs, suggesting that a systemic mindset promotes environmentally conscious attitudes. The study suggests that systems thinking can help both conservatives and liberals address climate change, regardless of their political views.
The GeoFarmer app enables smallholder farmers to collect and share vital information on climate-related agricultural interventions. Farmers produced tens of thousands of data points despite limited internet connectivity, demonstrating the app's potential to increase communication and empower farmers.
Scientists found that Europe's renewable-based electricity system will perform similarly in future climates due to its ability to withstand extreme weather events. The grid may require tweaks for efficient operation, but its overall functionality is expected to remain intact.
Researchers developed a method to visualize climate risks and their cause-effect relationships across seven sectors, including water, food, energy, and more. The study identified 253 causal relationships between climate drivers and risk factors, highlighting the interconnectedness of climate impacts on human security and health.
Researchers have developed new coefficients for carbon storage in agroforestry systems, improving the IPCC's ability to assess their impact on climate change. The new coefficients take into account the diversity of agroforestry systems and their effects on soil organic carbon stocks.
A study found similar trends in streamflow in natural and human-modified watersheds, indicating climate-induced changes. Streamflow decreased in the southern US and increased in northeastern states and Canadian prairies.
A record-breaking cold event in Eastern China in 2016 was found to be less likely due to human influences, with anthropogenic forcings estimated to have reduced the likelihood by about 2/3.
A new study by researchers at the University of Oklahoma and Oklahoma State University found that individual perceptions of climate anomalies are largely immune to political bias. The study used high-resolution data and address-based panel survey to examine how people in Oklahoma perceived climate anomalies, including extremes of tempe...
Research by University of New South Wales scientists finds that even a 1.5°C temperature increase will lead to longer and more frequent heatwaves globally. Tropical regions are expected to experience almost constant heatwaves with just a 2°C rise, while others may become unliveable if temperatures increase by 5°C.
A Kansas State University researcher found that climate variability, not the Three Gorges Dam, is the primary cause of a water supply decline in East Asia's largest floodplain lake system. The study found that 80% of the observed lake decline is due to simultaneous climate variability closely related to the El Niño-Southern Oscillation.
Groundwater exploitation causes drying in deep soil layers but wetting in upper layers, leading to unsustainable terrestrial water storage. The atmosphere responds with cooling over certain regions and increased precipitation due to evapotranspiration from groundwater irrigation.
A new study published in Geology reveals extensive fossilized river systems on Mars' Arabia Terra plain, indicating a warm and wet climate around 4 billion years ago. This discovery supports the idea that Mars was once more favorable for life than its current cold and dry environment.
A recent study published in Nature reveals that regional temperature extremes may exceed a 2°C rise by as much as 6°C in certain areas. This means that even if global average temperatures reach 2°C, local temperatures could be significantly higher, with potential impacts on sea-level rise and methane releases.
Research in Malawi and Zambia highlights the importance of considering local knowledge and beliefs when addressing climate change. In two rural communities, differing responses to changing climates were observed depending on co-existing traditional and Christian beliefs.
A new study has found early warning signals of a reorganisation of the Atlantic Ocean's circulation, which could impact the global climate system. The researchers used a complex model to analyze the Atlantic Meridional Overturning Circulation (AMOC), finding that these signs are present up to 250 years before it collapses.
A global meta-analysis reveals that climate change is driving changes in marine species' breeding, feeding, and migration timing, as well as shifting their geographic distribution toward the poles. The study found that warming oceans are causing marine species to move at an average of 72 kilometers per decade.
OU researchers will collaborate on a $20 million NSF EPSCoR grant to advance understanding of socio-ecological systems in Oklahoma. The project aims to develop a statewide socio-ecological observatory network, a forecasting system, and a decision-support system to address climate change and variability.
A comprehensive study of global temperature change over the past 1,000 to 2,000 years found pronounced regional differences. The research, led by Northern Arizona University's Darrell Kaufman, provides insight into climate variability and its impact on societies and ecosystems.
Recent studies have revealed that systems on the verge of a critical transition often emit comparable warning signals. This phenomenon, known as Critical Slowing Down, allows for early recognition of such transitions.
Researchers are using statistical approaches to analyze climate change risks, including the Atlantic Meridional Overturning Circulation. Bayesian statistics is a key tool in quantifying uncertainty and predicting future events. Collaboration between disciplines is essential for advancing climate science and risk management.
The Climate and Urban Systems Partnership aims to educate Pittsburghers, New Yorkers, and other urbanites about how climate change will affect them. The partnership is developing city-specific educational programs about climate change in urban environments, including hands-on activities that connect with local organizations.