Articles tagged with Climate Systems
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.
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.
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.
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.
Researchers suggest governments should prioritize adaption policies to address the negative impact of global warming, rather than focusing on reducing greenhouse gas emissions. The study highlights the importance of monitoring and modeling the impacts of climate change on Earth surface systems.
Research at the US Department of Agriculture found that no-till farming can reduce yield losses caused by climate change. The study simulated different climate factors on three cropping systems, finding declines in corn and millet yields over time. No-till management helped maintain wheat yields for up to 2075.
The Antarctic faces numerous challenges from human activity and climate change, including marine system impacts, invasive species, and pollution. The existing Antarctic Treaty System is being tested by growing tourism and resource use, highlighting the need for swifter decision-making and increased collaboration to conserve the region.
Researchers used stalagmites to reconstruct a history of the tropical West Pacific's climate over four glacial cycles, finding no evidence of a sudden shift in peak interglacial conditions following a key event. Instead, they found extreme drying in the tropics coincided with abrupt climate changes in high latitudes.
Researchers at the University of Exeter have developed a system to anticipate high-risk climate tipping points, providing early warning systems for devastating consequences. By analyzing observational data, scientists can identify signs of instability in climate systems, allowing for forewarning and adaptation.
A team of researchers from Kent State University has studied the history of drought in the Pacific Northwest over the past 6,000 years. They used sediment records and tree-ring data to find that drought duration increased in response to decadal oscillations driven by marine processes.
Researchers will collect and analyze data on carbon, nitrogen, and water movement to create models and evaluate crop management practices. The goal is to develop scenarios based on different practices and offer training for teachers and scientists to understand climate shifts and agriculture.
Researchers are analyzing sediment and water samples from four distinct environments, including cold-dry Antarctica, to test a hypothesis about the planet's past climate. The team hopes to find 'markers' or indicators unique to erosion in this type of climate.
Researchers developed a new technique to manage dams in the Columbia River basin for a warmer future climate. The approach reduced summer losses in hydropower due to climate change by about a quarter, while bolstering flows for fish and minimizing flooding.
Researchers have discovered that the deep ocean's temperature variability and circulation system are more complex than previously thought, leading to more accurate predictions of sea level rise and ice volume changes. The study uses a 3-D reconstruction of an ocean during a past warm period to gain insights into global climate dynamics.
Researchers propose a simple redesign of public buses to enhance cooling airflow through wide vents and adjustable roof designs. This design improvement increases the comfort zone of the bus from 11% to over 50%, benefiting all passengers.
Researchers analyzed the disappearance of the Laurentide Ice Sheet to shed light on how much the Greenland Ice Sheet will contribute to sea level rise. The study found that rapid melting can happen very quickly, with rates comparable to global sea level rise evidence for this interval derived from coral records.
A new study by CSIRO scientists warns that climate change will force environmental scientists to rethink their approach to conservation. Temperatures over Australia are projected to rise by about 1 ºC by 2030, and 1.8 ºC by 2070, relative to 1990 levels.
Researchers have identified nine key components of the Earth's climate system at risk of passing a tipping point, with some elements projected to undergo major transitions within the next 100 years. The study highlights the need for early warning systems and caution against complacency in addressing climate change.
The American Institute of Aeronautics and Astronautics has awarded NASA's Earth Observing System Program the 2006 Space Systems Award. The program, which comprises a series of Earth-observing satellites and an advanced data system, is being recognized for its outstanding achievements in global environmental monitoring.
Research at Ohio State University suggests that global climate changed dramatically 5,200 years ago, with severe impacts on emerging cultures. The team found evidence of sudden and severe climate shifts in ice cores, tree rings, and plant pollen records from around the world.
A study published in Nature found that changes in the North Atlantic Oscillation synchronize population fluctuations of caribou and muskoxen across Greenland. The researchers used local and global weather data to show cross-species synchrony, indicating the North Atlantic Oscillation's influence on their population dynamics.
Researchers at the University of Florida found that undercharged air conditioners use more electricity, leading to increased energy bills. They estimate that consumers can recover the cost of charging their systems in three months by simply topping off the charge.
The Pittsburgh Supercomputing Center will develop a six-teraflop terascale system, making it the most powerful available for public research. The system, part of NSF's PACI program, aims to facilitate progress in various fields, including climate change and weather forecasting.
NERSC's new IBM RS/6000 SP system will increase computing capabilities by over 400%, with a peak performance of 3 teraflops and 2,048 processors. The system will enable faster turnaround of results for users across the country, supporting large-scale scientific research in fields like climate modeling and materials science.
17-year-old Sasha Jones won a contest to name the first Earth Observing System satellite, Terra, which will study global climatic changes. The satellite's launch is set for July 15, 1999, and will enable new research into the planet's climate system.