Articles tagged with Climatology
High humidity exacerbates extreme heat's negative impact on cardiovascular health, increasing the risk of heart-related emergencies by six times. Researchers analyzed over 340,000 emergency room visits in Dhaka, Bangladesh, finding a significant association between high heat and humidity levels.
Researchers used a fiber-optic cable to capture calving dynamics across the fjord of a South Greenland glacier, documenting a 'crazy calving multiplier effect' that accelerates glacial mass loss. The data provides a deeper look at the relationship between ice and water, shedding light on the consequences of continued mass loss.
A new study suggests that exposure to wildfire-derived PM2.5 is linked to increased mortality and morbidity, with a 93% underestimation of the actual death toll. The research estimated 535 annual deaths from all causes due to short-term exposure to wildfire smoke.
Fossilized dinosaur teeth contain oxygen isotopes that indicate high carbon dioxide levels in the atmosphere during the Mesozoic Era, which was four to three times higher than today. This data suggests dynamic climates with double primary plant production, contributing to their extinction.
Scientists have uncovered the remains of a vast animal community that lived in the European Arctic 75,000 years ago. The bones represent the oldest example of an animal community in the region during this warmer period of the ice age, providing valuable insights into how wildlife responded to dramatic climate shifts.
Global net primary production increased significantly between 2003 and 2021 due to land's photosynthetic increase, but declined in marine algae. The study highlights the importance of terrestrial ecosystems in offsetting ocean declines.
Recent research from American Meteorological Society journals predicts a new record for lightning and a decrease in hurricane frequency. Additionally, fire forecasts have been updated to better manage water resources in Colorado's Gunnison River Basin.
Researchers found that solar energy delivers the biggest climate payoff in certain US regions, with California and Florida seeing significant CO2 reductions. A 15% increase in solar power led to a reduction of up to 147.18 metric tons of CO2 in California alone.
Researchers at Göttingen University developed a method to reconstruct the early Earth's atmosphere using fossilized micrometeorites. The study found that intact micrometeorites can preserve reliable traces of oxygen isotopes over millions of years.
A recent MIT study found that decreases in seed-dispersing animals can lead to a major reduction in forest carbon absorption. The researchers analyzed data from thousands of vegetation plots and found that healthy populations of seed-dispersing animals can absorb up to four times more carbon than similar forests with fewer animals.
A new study using NASA's PACE satellite data established a novel method to determine global plant productivity. The technique relies on the light plants reflect, allowing for accurate capture of short-term changes. This approach has significant implications for understanding carbon sequestration, climate change, and ecosystem monitoring.
Researchers developed a new machine learning method to improve climate model projections, making them more accurate at both global and regional levels. The new tool addressed challenges in capturing observed patterns in compound extreme events, leading to improved projections of these events.
Tiny droplets of sea spray can affect hurricane intensity, but measuring their concentration and size is challenging. Researchers at the University of Texas at Dallas are using lab experiments and simulations to develop a machine learning model that incorporates these factors.
A new study attributes the extreme nature of the floods to climate change, linking it to intensified rainfall and warning that storms will become even more intense as the planet warms. The research calls for building resilience in a warming world through advanced early warning systems and community-based flood warnings.
A new global study reveals unprecedented freshwater loss since 2002, with four continental-scale mega-drying regions in the northern hemisphere. The findings warn of severe consequences for water security, agriculture, and sea level rise.
A new study by Boston University School of Public Health and Harvard T.H. Chan School of Public Health found that energy-efficient strategies can have a significant impact on public health in the European Union. The research reveals dramatic differences in health burdens from electricity use based on the source of energy used, with cou...
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.
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 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.
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.
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 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.
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.
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.
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 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.
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 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 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 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.
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.
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.
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 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.
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 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.
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.