Articles tagged with Climatology
A recent study published in PLOS One found that European peatlands require warm temperatures and a specific water table depth to accumulate plant matter and store carbon. The study suggests that maintaining a water table around 10 centimeters below the surface is key to allowing peat to grow quickly and store carbon over the long term.
Researchers estimate that lightning kills around 320 million trees each year, resulting in significant biomass loss. This equates to an annual emission of 0.77-1.09 billion tons of CO₂, comparable to the emissions from wildfires.
A team of scientists has developed a high-resolution climate model that simulates global climate change at 9 km atmospheric and 4-25 km oceanic scales. The model demonstrates superior performance compared to lower-resolution models, providing detailed regional insights into future climate conditions.
Recent AI applications in wind speed prediction have improved accuracy and stability. Hybrid models combining shallow and deep learning approaches enhance robustness and long-term pattern extraction. The review emphasizes the role of multi-objective optimization in balancing prediction accuracy, efficiency, and model interpretability.
A study found that declining aerosols are up to 2.5 times more influential than greenhouse gases in driving changes in heatwave occurrence in populated areas. Higher levels of aerosols suppressed heatwave exposure by reflecting the sun's rays, but this trend is now reversing due to clean air policies.
A new study by researchers at the University of Kansas finds that cities with proactive, learning-oriented and risk-tolerant governance styles are more likely to implement ambitious climate resilience strategies. These cities are better positioned to protect their communities and lead meaningful change in an era of mounting climate risks.
Scientists reconstructed ocean pH levels 201 million years ago and found a massive drop in acidity, leading to mass extinction. The research links this event to volcanic activity and a significant increase in atmospheric CO2.
A new study revisits forecasts made in 2002 about the world's rocky shorelines, finding some threats have materialized while others have not. The researchers highlight the importance of addressing issues like ocean acidification and plastic pollution to protect coastlines.
A new study reveals how variations in the stratospheric polar vortex affect where and when extreme cold hits, with a focus on the northwestern US. The research finds two distinct patterns that steer Arctic air into different areas, leading to colder winters in regions like Montana and Texas.
Researchers solved a long-standing climate mystery by combining geological evidence with climate model simulations. They found that speleothem δ18O records reflect precipitation signals from multiple seasons, not just summer monsoon season.
Researchers at KIT have developed a new AI method that generates high-resolution precipitation maps from low-resolution data, offering improved assessments of regional climate risks and disaster control. The model provides physically plausible precipitation maps with statistical uncertainty, applicable to diverse climatic conditions.
Researchers found that azuki bean beetles infected with Wolbachia bacteria produce larger eggs yielding exclusively male offspring when exposed to elevated temperature and carbon dioxide. This adaptive reproduction strategy enhances the survivability of their offspring.
New research claims adding lime to agricultural soils can remove CO2 from the atmosphere, rather than cause emissions. The study, based on over 100 years of data, shows that the addition of acidity is the main driver for CO2 emissions from soils.
New research reveals that lakes relying on groundwater connections maintain stable water levels and buffer climate change impacts. Shallow lakes are vulnerable to rising temperatures and reduced rainfall due to high evaporation rates.
Researchers found that longest heat waves will see greatest acceleration in frequency, while extreme heat waves will increase most. The study's equation can analyze one region or multiple regions, providing valuable insights into climate change impacts.
Research presents fig tree species storing calcium carbonate in trunks, converting CO2 from atmosphere. The oxalate-carbonate pathway increases soil pH and nutrient availability, making it a potential means to mitigate CO2 emissions.
Weakening Atlantic Meridional Overturning Circulation (AMOC) impacts both the ocean and atmosphere, contributing equally to the cold anomaly. A cooler ocean surface reduces evaporation and moisture in the atmosphere, amplifying the pre-existing cold anomaly.
A new study reveals that forests take 1-2 centuries to shift tree populations in response to climate changes, highlighting the need for human intervention to keep them healthy. Assisted migration, such as planting warmer-climate trees in colder locations, may be an effective tool to aid forest adaptation.
A new study suggests that sustained US military spending reductions could lead to substantial decreases in energy consumption, with potential annual savings comparable to those of Slovenia or Delaware. The analysis found that decreased spending primarily affects energy consumption from facilities, vehicles, and equipment, and jet fuel.
New research reveals that the collapse of tropical forests during Earth's most catastrophic extinction event led to a prolonged period of high CO2 levels and extreme warming. The study supports the theory that thresholds exist in Earth's climate-carbon system, which can amplify warming when reached.
Researchers used daily high-resolution images to create 3D elevation models of three glaciers: La Perouse Glacier in Alaska, Viedma Glacier in Argentina, and Skamri Glacier in Central Asia. The analysis revealed consistent thinning in the Viedma and La Perouse Glaciers but a small net gain of ice in the Skamri Glacier.
A new study led by RMIT University found that restoring southern Australian reefs from urchin barrens is feasible and beneficial for improved water quality, fisheries, and carbon sequestration. Economic modelling showed an AU$50 million investment would return up to AU$92 million in economic benefits.
A new online platform, SMRT-Flames, estimates the health impacts of wildfire smoke and provides fire managers with tools to assess potential smoke exposure. The app uses a Harvard-developed computer model to predict how fires would behave across regions and how smoke would pool and disperse.
Urban gardens in Warsaw contribute to better carbon dioxide absorption, air pollution reduction, and the mitigation of urban heat-island effect. They also improve water efficiency, reduce flood risk, and promote social capital.
A groundbreaking study reveals that small zooplankton like copepods and krill enhance carbon sequestration through seasonal migrations. These tiny creatures store around 65 million tonnes of carbon annually in the deep ocean.
A new study from Tulane University reveals that parts of New Orleans are sinking at an alarming rate, with some areas experiencing up to 2 inches of elevation loss annually. The findings highlight the need for ongoing monitoring and maintenance to ensure the city's flood defenses remain effective.
Researchers found several volatile phases in the polar jet stream over the past 125 years that predate significant climate change effects. The study suggests that natural fluctuations may be driving recent erratic behavior of the jet stream, rather than climate change.
A new global study reveals that nearly 70% of tree species will face significant climate shifts by the end of this century. The study identified exposure hotspots and climate refugia, highlighting the need for urgent conservation actions.
Researchers analyzed leaf waxes and found no significant drying trend in northern Africa between 3.5 and 2.5 million years ago. This challenges previous interpretations of the climate history of the region. The study suggests that dust deposits may be attributed to changes in wind patterns rather than rainfall.
Researchers found that eukaryotes could survive in shallow pools of water atop ice sheets, similar to modern-day meltwater ponds in Antarctica. These environments supported diverse communities of early complex life, influenced by salinity levels.
Researchers estimate that temperatures several degrees above the 2022 UK heatwave are plausible in today's climate, with a simulated maximum of over 45°C (113°F). The likelihood of 40°C will continue to rise as the climate warms.
Researchers found that humans increased their ability to exploit different habitat types in Africa around 70,000 years ago, paving the way for a successful dispersal into Eurasia. This ecological flexibility allowed human groups to adapt to challenging climates and overcome geographic barriers.
Researchers will investigate fire smoke carcinogens and cancer biomarkers in active, retired, and cadet firefighters to understand the impacts of firefighting on their lifelong health. The study aims to identify groups most at risk for cancer and recommend policies and programs to protect firefighter health.
Researchers discovered that a substantial proportion of metals are removed from seawater solution by solid manganese-oxide particles. Chemical reactions in sediment release metals back into solution, which then mix back up through the ocean. This process changes how we view ocean chemistry and its impact on climate.
A study of 34 children found significant differences in basal ganglia volume between those exposed to prenatal Superstorm Sandy and those not exposed. The findings suggest that extreme heat may have amplified the risk of having a differently-sized basal ganglia.
The Global Declaration of Commitment for Scientific Ocean Drilling aims to promote global cooperation and collaboration in ocean science. The declaration sets out core principles for transparent access to data and samples, inclusive participation, environmental responsibility, and alignment with the UN SDGs.
Researchers uncover valuable insights into past climate scenarios and marine ecosystems through ancient sediment cores. The study highlights the need for more data to improve future climate models and transform our understanding of Earth's complex life systems.
Researchers found hurricanes dramatically change oxygen concentrations and bring nutrient-rich water to the surface, creating phytoplankton blooms that support a variety of marine life. This process has significant impacts on ocean ecosystems, particularly in areas with low-oxygen zones.
Researchers at Tufts University warn that vulnerable communities in the Southeastern US are at high risk of extreme heat and flooding events. To prepare for these disasters, they propose a framework to help communities anticipate and respond to unexpected events.
The Florida Atlantic University Sensing Institute's SEA Econet network provides accurate rainfall and flood forecasting, supporting public safety during severe weather events. With over 160 atmospheric stations and more than 30 water-level stations across Florida, the network delivers real-time data to inform forecasts and warnings.
Researchers used fluorescence lidar technology to detect thin layers of smoke at high altitudes, originating from Canadian forest fires. This suggests the upper troposphere over Europe may be more polluted than previously assumed, with potential impacts on ice cloud formation and climate.
A new study finds that increasing atmospheric evaporative demand is making droughts 40% more severe globally over the past 40 years. As the atmosphere warms, air can hold more moisture, leading to increased water demand and pulling more water from soils, rivers, and plants.
Phytoplankton biomass in the North Atlantic has declined by up to 2% per year over six decades, potentially affecting the entire ocean's ecosystem. This decrease may have significant consequences under climate change.
Researchers at the University of Graz have developed a new benchmark timeseries that tracks global surface air temperature change from 1850 to 2034. This enables reliable monitoring of the Paris climate goals, which are set to be exceeded by 2028. The study proposes a four-classes assessment scale to gauge compliance with the agreement.
A new study predicts that limiting warming to 1.5°C could preserve over half of the world's glacier mass, but even at this level, 39% of glacier mass would still disappear due to delayed climate change reactions.
The Late Ordovician Mass Extinction was caused by the rapid onset of global warming after the Hirnantian glaciation. The extinction lasted approximately 400 kyr with an average species extinction rate of 71.6% per 100 kyr during this period.
The partnership brings together two organizations with a shared commitment to scientific innovation, connecting Hertz Fellows with Breakthrough Energy's global network of climate and energy experts. The collaboration aims to advance transformative climate and energy solutions through joint programming, workshops, and shared resources.
A recent study using SWOT satellite data has revealed the existence of powerful submesoscale eddies in the ocean, which play a significant role in shaping the climate system. These smaller currents carry surprisingly large amounts of energy and influence marine food webs, weather patterns, and events like El Niño and La Niña.
A new study finds that limiting global warming to 1.5°C could save twice as much glacier ice as current policies, which project an average of +2.7°C. This would mitigate 10cm of sea-level rise and preserve up to 39% of global glacier mass.
A new study suggests that reforestation efforts can lower global average temperatures by 0.34 degrees Celsius, roughly one-quarter of the warming already experienced. This is due to the chemical interactions between trees and the atmosphere, which amplify their cooling effect.
A new study published in Science finds that strong climate policy can preserve twice as much ice as current warming trajectories, even if temperatures stabilized today. At a 1.5°C temperature increase, 53% of global glacier mass could be preserved, alleviating hazards like flooding and freshwater deficiency.
A new study has uncovered previously hidden patterns of plankton adaptation in response to environmental changes. The analysis showed that plankton lipid profiles are closely linked to their environment, with adaptations including shortening fatty acid chains in cold polar oceans.
A new international study shows that El Niño and La Niña climate patterns affect nearly half of the world's mangrove forests, threatening these vital coastal ecosystems. Mangroves are experiencing widespread degradation during El Niño events and increased growth during La Niña events.
Measuring ammonia concentration near an Adelie penguin colony found increased levels when wind blew from the colony, suggesting a connection between penguin guano and climate change mitigation. The study suggests that penguin guano may help reduce the effects of climate change on Antarctica by contributing to increased cloud formation.
Aurora, a state-of-the-art machine learning model, delivers high-quality forecasts for key environmental systems like air quality, weather, and tropical cyclones. The model's flexibility enables it to be used for various future scenarios, including flood risks, wildfire spread, and renewable energy output.
Combining afforestation and oceanic carbon dioxide removal does not lead to efficiency losses, according to LMU researchers. This combination could reduce pressure on land areas, providing social and ecological advantages. More research is needed into marine CDR methods and their environmental impacts.
A new optimization approach for fuel breaks in Alberta, Canada's fire-prone landscapes can effectively reduce potential risks and impacts of forest fires. By accounting for uncertain wildfire behavior, this method helps compartmentalize a fire-prone forest landscape.
Scientists have found that oceanic anaerobic respiration produces sulfur species, forming pyrite or 'fool's gold', which helps buffer the alkalinity of water and prevent acidification. This process has a stabilizing effect on the ocean, playing a significant role in preserving its alkalinity for millions of years.
Researchers from Kyushu University found that climate models significantly overestimate the fraction of ice in wintertime Arctic clouds, leading to skewed warming predictions. This error has significant implications for current and future global warming projections.
A new study reveals that the negative effects of the ozone hole on the Southern Ocean's carbon uptake are reversible, but only if greenhouse gas emissions rapidly decrease. The study found that as the ozone hole heals, its influence on the ocean's carbon sink diminishes, while the influence of greenhouse gas emissions rises.