Articles tagged with Seasonal Changes
A new study from the University of Georgia found that counties with moderate-to-high wildfire risk are more likely to have higher poverty rates. The researchers identified 14 states in the lower 48 with the highest wildfire risk, including Arizona, California, and Texas.
Climate change is intensifying Western US wildfire activity, resulting in taller smoke plumes and more aerosols injected into the atmosphere. The study models 4.6 million smoke plumes and finds that maximum plume height increased by an average of 320 ft per year in four regions, with some areas experiencing a 750 ft per year increase.
A study published in the Journal of Ecology found that plants flowered and leafed out earlier in contemporary years than in the early 19th century, coinciding with a warming trend. The accelerated timing poses risks for some species' survival and informs conservation efforts.
A new University of Maine study reveals that temperatures are rising at different rates in various locations across the state's wild blueberry fields, particularly during the fall, winter, and summer. The findings suggest that warmer daytime and nighttime temperatures increase carbon dioxide production and alter the carbon cycle.
A study found that COVID-19 disrupted RSV's seasonal pattern, leading to a 'collapse' of existing strains and emergence of new ones. The pandemic also accelerated the spread and evolution of other viruses like influenza.
Researchers found that Mars' extreme energy budget imbalance can contribute to dust storms. The team analyzed four years of data from NASA missions and found a correlation between the planet's orbits and temperatures, suggesting that the energy excess may be one of the generating mechanisms of Mars' dust storms.
Researchers documented traditional wooden boats in the Zanzibar Channel, showing continued use despite modern transportation developments. The study highlights innovations such as outboard engines and portable generators, which have transformed fishing methods.
A new study reveals that global warming will shift the timing of ocean plankton blooms, impacting the marine food web and potentially disrupting the delicate coupling between phytoplankton growth and zooplankton abundance. This change could have severe consequences for high-latitude regions.
A new online tool, HazardAware, provides disaster readiness reports for 13.3 million addresses in 196 counties along the Gulf of Mexico, including all of Florida. The tool assesses a property's resilience to hazards such as hurricanes and flooding, and offers customized mitigation information to reduce future hazard loss.
Researchers propose a dual water and energy storage scheme to resolve the temporal mismatch between resources, reducing CO2 emissions while guaranteeing water supply. The scheme utilizes seasonal pumped hydroelectric systems to store water for irrigation during summer and hydropower generation in winter.
A recent study suggests that tree density in the Cerrado biome has been controlled mainly by the length of the dry season over the past 45,000 years. The research found a link between changes in the dry season and variations in Earth's axial tilt, which may lead to similar trends in the late 21st century.
Researchers have developed a model to explain how Titan's distinct landscapes form, including dunes, plains, and labyrinth terrains. The study reveals that seasonal liquid transport cycles drive the movement of grains over the moon's surface, creating an Earth-like environment with hydrocarbon sand dunes.
A new UC Riverside study finds that the timing of rainfall is crucial for drought-stricken plants, with summer rains resulting in higher plant biomass. In contrast, winter rains have less impact on plant growth and may lead to negative effects.
A new study from George Mason University researchers highlights the use of artificial intelligence and seasonality to screen patients and identify the probability of COVID-19. The algorithm takes into account symptom clusters and age/gender differences, suggesting that fever is a stronger predictor of COVID outside of flu season.
A new study from Brigham Young University finds that the Every Kid Outdoors program is increasing family hiking, with a seven-fold jump in frequency among high-income and white families. However, minority and lower-income families have not seen a similar significant increase in hiking frequency.
Researchers found that livestock grazing had no negative impact on snow leopard distribution or density, and the species can coexist due to their separate ecological niches. The study suggests a more nuanced approach to conservation and land use, prioritizing the preservation of rocky mosaics.
A recent study published in Nature Geoscience has found that tropical trees' trunk growth is reduced in years with drier and warmer conditions. The researchers also discovered that the effect of climatic fluctuations is more dramatic in arid or warm regions, suggesting climate change may increase the sensitivity of tropical trees.
A new study reveals highly variable year-to-year changes in surface meltwater lakes around the East Antarctic Ice Sheet. Warmer seasons lead to deeper and larger lakes, potentially vulnerable ice shelves are at risk of break-up due to climate change.
A new study reveals climate change has caused significant recent losses of India's forests, exacerbating deforestation. The research found that rainfall alterations and temperature trends contributed to large declines since the turn of the century, necessitating targeted preservation action.
Researchers found that fruit flies underwent widespread physical and genomic adaptation within weeks, with changes documented in 60% of their genome. The study's findings suggest a new paradigm for understanding the timescale of evolution, highlighting rapid and dynamic adaptation to environmental conditions.
A landmark study published in JAMA reveals that hurricanes and tropical cyclones in the US are associated with increased deaths from various causes, including injuries, infectious diseases, and cardiovascular conditions. The study analyzed 33.6 million death records and found a significant increase in mortality rates after tropical cyc...
Researchers warn that deforestation and climate change are exacerbating drought conditions in Brazil's agricultural frontier, threatening soybean yields. The study analyzed changes in hydrology and weather patterns over four decades, highlighting a rise in temperatures, dry days, and decreased precipitation.
A new generation of thin triple-pane windows has made significant strides in energy efficiency, cost, and availability. The latest research shows that these next-generation windows can improve the energy efficiency performance of windows by up to 40%, boosting the total insulating value of a home exterior.
A new study found a strong association between school closures and declines in non-residential trips during COVID-19, leading to reduced risk of dengue transmission. Reduced time spent in public areas was closely associated with reduced dengue risk in countries where COVID-19 restriction measures began at the peak of dengue season.
Researchers assess predictive skills of ocean heat content in two state-of-the-art seasonal forecasting systems, finding potential to predict sub-surface warming up to two seasons in advance. This could aid mitigation of extreme events and provide early warnings for industries such as aquaculture and fishing.
Research found that an earlier start to the growing season enhances tree growth in cold, humid regions but not in dry areas. The study analyzed annual tree-ring width data and found distinct spatial patterns of tree growth in response to an earlier onset of cambial activity.
A study by researchers from the University of Tsukuba found that taking a 15-minute walk outside on a hot summer day can impair cognitive performance. This effect was more pronounced in men who slept less than 5 hours, suggesting that heat stress may negatively impact learning and productivity.
New research outlines how climate change will shift the future of outdoor recreation in the West, with campsites becoming too hot, ski resorts experiencing fluctuating snowpacks, and rivers facing low water levels. The study provides activity-specific adaptation strategies to prepare for these consequences.
A study by Brazilian researchers found that regular fires enhance functional diversity and carbon fixation in savannas. They measured species numbers, attributes, and carbon dynamics in two areas, one with frequent fires and the other without fires for 16 years.
Scientists monitoring hundreds of US streams with sensor technology are gaining insights into how freshwater vital signs shift in response to land development and climate change. The data, made publicly available, will help track changes over time and provide a better understanding of the 'pulse' of streams.
A study of 1.1 million pregnancies in Denmark found a significant association between seasonal patterns and the rate of extremely preterm births. The analysis revealed that rates of extremely preterm births were higher during the winter months.
A recent study found an increase in intentional drug overdose deaths among young people aged 15-24, older adults aged 75-84, and non-Hispanic Black women. Despite a downward trend in overall deaths, these subgroups saw a rise in intentional overdose death rates, with women ages 45 to 64 having the highest rates.
Researchers from The University of Tokyo developed a model to predict the occurrence of red snow events, which are associated with the duration of snow melt and the timing of new snowfall. The study found that snow algae blooms can speed up snow melt as they darken the surface.
Climate change is causing plants in the UK to flower one month earlier, with average first flowering dates advancing by a full month since the mid-18th century. This phenomenon can lead to ecological mismatch, affecting biodiversity and ecosystems.
Researchers found that giant pandas' gut microbiota shifts in season, helping them gain weight and store fat. The team used a fecal transplant experiment to show that the metabolic product of Clostridium butyricum can upregulate lipid synthesis and storage.
Researchers have found an unprecedented increase in winter stream flow rates over the last 25 years, with nearly 80% above average, driven by permafrost melt and forest fires. The combined effects of these factors are accelerating Arctic ice melt and exacerbating global warming.
The study of XO-3b reveals stronger seasonal variations than Earth's, with temperatures reaching 2,000 degrees C. The planet's oval orbit and high surface temperatures suggest a history of migration toward its parent star.
Research reveals that the 2020 Yangtze River flooding was caused by an unusual anticyclone and frequent latitudinal swings of the Meiyu front. The study aims to improve forecasting skill before and during monsoon season.
Researchers at USTC reconstructed precipitation patterns in East Asian monsoon region during the Holocene and proposed a driving mechanism. The study suggests that low-latitude seasonal insolation changes, modulated by Western Pacific Subtropical High, control monsoon precipitation variation.
Researchers observed diverse aquatic biota in post-flood communities, with changes in flow dynamics and water chemistry supporting biological adaptation. The study highlights the role of floods in shaping floodplain ecosystems.
A groundbreaking study confirms the timing of the Chicxulub asteroid impact, which occurred during the spring-summer growth phase, leading to the extinction of dinosaurs and 75% of life on Earth. The research team used multiple lines of evidence, including fossil pollen, index fossils, and radiometric dating, to pinpoint the exact time...
The study found that climate change impacts are apparent in nearly all aspects of climate variability, including temperature extremes, precipitation patterns, and ecosystem changes. These changes have important implications for sustainable resource management and future adaptation strategies.
Seasonal air pollution may contribute to asthma emergency department visits even in areas with generally low pollutant levels. The study used Bayesian time-stratified case-crossover models to examine associations between air pollution and asthma seasons.
Researchers identify a molecular culprit for COVID-19's seasonal nature, finding a galectin-like structure on the spike protein that responds to external seasonal patterns. This discovery could help predict future mutations and potentially pave the way for new therapeutics or vaccines.
A new global-scale analysis shows that phenological changes are lagging temperature change, especially in human-dominated landscapes. Human activities such as population density and land-use types play a key role in this mismatch.
Researchers analyzed satellite data over two decades to understand how climate change impacts Red Sea marine ecosystem. Phytoplankton blooms show unique annual cycles, with four specific bioregions in the region experiencing different seasonal patterns.
A recent study found associations between air and water pollutants and changes in the human sex ratio at birth. Pollutants such as PCBs, iron, lead, and chromium were linked to an increased or decreased ratio of baby boys to girls.
A study by FAU Harbor Branch reveals that even properly functioning septic systems contribute to nitrogen pollution in the Indian River Lagoon. Groundwater samples showed higher dissolved nutrient concentrations than surface waters, indicating contaminated groundwater as a major source of nutrient loading.
A new study reveals that the Pantanal, a vast wetland in central South America, can reconcile healthy jaguar populations with economic activities. Ecotourism lodges have been found to be suitable habitats for jaguars, allowing for a landscape of tolerance where the species is no longer persecuted.
Researchers reconstruct Land of Israel climate at end of last ice age using plant remains, revealing significant temperature and precipitation differences that impacted the transition from hunter-gatherer to settled agricultural societies. The study provides insights into the region's flora and its response to past climate change.
A recent study found that earthquakes and extreme rainfall lead to a significant increase in landslide rates in Nepal during the monsoon season. The research, published in Nature Communications, reveals that landscape damage caused by the April 2015 Gorkha earthquake increased landslide risk by six times.
The study, led by Universidad Complutense de Madrid, estimates that record temperatures are eight times higher than expected without global warming. At least one in four new record rainfalls is attributed to climate change.
Amazon Rainforest birds have reduced body mass by an average of 2% every decade since the 1980s, with most species losing about 27.6 grams on average. The birds' bodies and wings have also changed to become more energy-efficient in flight, with longer wings and lighter bodies adapted to hotter and drier conditions.
A new diagnostic guide for pythium damping-off and root and stem rot of cucurbits has been published, providing a concise resource for growers, diagnosticians, and plant pathologists. The guide summarizes techniques for isolating, identifying, and testing Pythium isolates to combat these diseases.
A recent study by McGill University researchers found that hunter-gatherer societies were limited by the seasonal availability of food, with groups in short-growing seasons requiring a high percentage of meat in their diets. This finding is supported by ethnographic observations and simulations using a mathematical model.
Farmers in the African Sahel have developed crop diversity strategies to cope with high seasonal variability and rising temperatures caused by climate change. By alternating long and short-cycle crop varieties, such as sorghum and pearl millet, they maintain food security despite changing environmental conditions.
Researchers found that bacterial communities in streams adjacent to young secondary forests recover to resemble those of mature forest streams within a decade after cattle is removed from the land. This study provides hope for restoring water quality through passive reforestation, which can be crucial for human health and the environment.
Researchers developed a viral panel that enables simultaneous testing for SARS-CoV-2 and common respiratory viruses, providing insight into coinfections and viral spread. The tool helps predict and mitigate future outbreaks by tracking novel viral variants and their patterns of spread.
A new study by Virginia Institute of Marine Science researchers maps the conditions most suitable for key species of forage fishes in the Chesapeake Bay, offering guidance for protecting or restoring their habitats. The analysis reveals that factors such as water depth and temperature affect the abundance of forage fish, with some spec...
Researchers identified a clear-cut seasonal pattern in respiratory viruses, with peaks in January and lows in June, affecting hospital admissions. The study found that babies born in severe peak years were more likely to be infected and hospitalized, highlighting the importance of planning ahead for high seasons of illnesses.