Articles tagged with Climate Change
Breeding king penguins form large, dense colonies that resemble particles in liquids, providing protection against predators and maintaining social cohesion. The unique structure of these colonies enables them to adapt to internal and external changes, making it crucial for predicting the species' resilience to climate change.
Baby birds can regulate their body temperature despite hot nest box temperatures, but this comes at a cost: reduced growth. Researchers recommend placing nest boxes in shaded areas to minimize the impact of heat on nestlings.
A study published in PLOS ONE found that climate change and recreational activities have altered the ecology of Walden Pond, affecting water quality and plankton community. The research used sediment cores to track changes in phytoplankton levels and nutrient levels since the 1920s.
Research predicts that climate change will disrupt the fueling-up stage of migratory birds in late summer, threatening their survival. The study used bird observations from eBird to identify locations and times when populations may be at risk under future climate change.
A new study reveals that biodiversity on mountain peaks in Europe is increasing at an accelerated rate, with plants colonizing higher altitudes in response to warmer temperatures. This trend suggests a risk of disrupting mountain ecosystems as certain species may not be able to adapt to changing conditions.
New University of Colorado Boulder research suggests that limiting warming to 2.7 degrees Fahrenheit would reduce the likelihood of an ice-free Arctic summer to 30 percent by 2100. In contrast, warming by 3.6 degrees Fahrenheit would make at least one ice-free summer certain.
Researchers at the Institute of Atmospheric Physics successfully predicted terrestrial water storage beyond 2-5 years in semiarid regions using a set of global land model ensemble simulations. The study improves near-term climate change projection and water resource management by incorporating low-frequency climate information.
Researchers from FAU found warning signs of mass extinction existed 700,000 years before the event, including fossil records of dying species. They also note that current global warming, ocean acidification, and oxygen lack are evident in today's biodiversity crisis.
A new model simulates sediment transport and coral reef development in response to climatic variability. The study reveals that high sediment loads prevented coral growth during early sea level rise, while a balance between climate, sea level, and physiography enabled reefs to thrive.
Scientists found that meeting temperature targets without overshooting may not require zero emissions, while drastic cuts in emissions can stabilize warming at 1.5 or 2 degrees C. The timing of emission reductions matters significantly.
A study published in PLOS ONE found that US National Parks are essential for bird conservation in a changing climate. By 2041-2070, the average park is expected to support 29% more species in winter and 6% more species in summer.
A study by UK scientists reveals that species living in symbiosis with others may be the most vulnerable to extinction, with rising sea levels threatening freshwater habitats. The research suggests that these ecosystems are delicately balanced and threatened, making them prone to extinctions.
The University of Cincinnati's new interactive map, ClimateEx, analyzes five decades of global weather data to demonstrate climate change and its diversity. Researchers can compare the climates of different places and predict areas prone to extreme weather phenomena.
Scientists warn that Amazon deforestation rates between 20% and 25% could irreversibly alter the region's hydrological cycle, leading to degraded savannas and low biodiversity. Researchers advocate for a safety margin of less than 20% deforestation to prevent this tipping point.
Researchers found that making faraway climate impacts feel closer to people does not necessarily translate into greater policy support. Participants who viewed a smaller map of the Maldives and the US judged the distance as shorter, but their policy support for climate change remained the same.
A study published in Environmental Research Letters found that a 1.5C temperature increase could lead to the permanent inundation of lands home to about 5 million people by 2150. The research team used global tide gauges and sea level projection frameworks to explore differences in storm surge events across three scenarios.
Researchers developed a water-stable MOF/polymer composite that can remove over 1.6 times its own weight of mercury and 40% of its weight in lead from contaminated water samples. The material was tested in solutions with lead levels similar to those found in Flint, Michigan, and reduced lead concentrations to 2 parts per billion.
A growing network of fast-draining lakes on the Greenland ice sheet triggers a chain reaction that speeds up ice flow, posing a new risk for the ice sheet's long-term stability. The research, led by the University of Cambridge, reveals that these 'drainage events' can temporarily accelerate ice flow by as much as 400%.
Researchers found that humans in South Africa flourished during the volcanic winter caused by the Toba super volcano eruption. The study, published in Nature, used cryptotephra analysis to narrow down the time of the event and its impact on human ancestors.
Researchers at Cornell University propose a new broad nomenclature to describe the complex connections between viruses, environment, and wasting diseases among sea stars in the Pacific Northwest. Climate change remains a suspect factor in the disease outbreaks.
A new study finds that climate change could lead to local extinction of up to 25% of plant and animal species in the world's most biodiverse areas. If carbon emissions continue to rise unchecked, these places could lose half of their species by the turn of the century.
Scientists found a correlation between sea surface temperatures in the Irminger Sea, surface freshwater, and atmospheric conditions in the Labrador Sea. The study suggests that freshwater can weaken deep convection, leading to delayed onset of winter convection and potentially weakening ocean circulation.
The Alps boast an impressive array of lichens, comprising over 3,138 entries in the first ever comprehensive checklist. The publication sheds light on the ecology and taxonomy of these organisms, providing a valuable tool for research and further exploration.
A large-scale intervention in China improved agricultural efficiency while reducing environmental impact among 20.9 million smallholder farmers, yielding a 10% increase in grain output and a 15-18% decrease in fertilizer use.
A study from Uppsala University reveals a link between ice volume, sea level changes and desertification in Eurasia. The research found that as ice volume decreased and sea levels rose, summer monsoon rainfalls intensified, while sandy deserts retreated.
New research reveals sections of the San Francisco Bay shoreline are sinking at rates of nearly half an inch a year. This subsidence exacerbates flooding risks from rising sea levels, increasing areas at risk from 20 to 166 square miles by 2100.
The study explores the feasibility of achieving a 1.5°C warming limit by 2100 using six integrated assessment models. Successful scenarios require rapid shifts away from fossil fuels, lowered energy use, and CO2 removal. Inequities and poor climate policies hinder achievement.
A recent expedition using satellite imagery and quadcopter-based aerial photography revealed the Danger Islands have over 751,527 pairs of Adélie penguins, making them the third and fourth largest colonies worldwide. The discovery sheds light on how climate change affects this species, with potential implications for conservation efforts.
A new study found that snowpack levels in the western United States have declined by 15-30% since 1915, with a significant impact on water storage and usage. The loss of water storage is comparable to Lake Mead, the West's largest manmade reservoir.
A new study reveals that humor can effectively inspire young people to pursue climate change activism. The study found that college-aged adults between 18 and 24 were most inspired by the humorous video, which made them more likely to want to engage in activism and believe climate change is risky.
A study published in the American Journal of Agricultural Economics refutes the idea that climate change leads to civil war in Africa due to food scarcity. Instead, conflicts are driven by competition over abundant food resources, with most armed groups unable to sustain themselves and instead seeking control over local food supplies.
A study found that large day-to-day swings in outdoor temperature are associated with a significantly increased risk of heart attacks. The researchers calculated the temperature fluctuation preceding each heart attack and found that a five-degree jump in temperature differential was linked to a 5% increase in heart attack rates.
Researchers at the University of East Anglia have discovered a key gene responsible for synthesizing dimethylsulfoniopropionate (DMSP), an important nutrient in marine environments. The discovery could allow scientists to better predict the impact of climate change on DMSP production and its effects on the global sulfur cycle.
The partnership aims to develop decision-making tools based on satellite observations of Earth, which can be used worldwide. Conservation International is working with governments and stakeholders to implement policies that preserve natural resources along the Mekong River.
Researchers have developed a new technique to study lake sediments, using moth scales to identify past and future insect outbreaks. This discovery can help improve knowledge of insect impact on forests, predictability, and links to climate change.
Researchers combined fieldwork and computational models with satellite images to shed light on seasonal patterns in the Amazon. They found that biological processes, such as leaf growth and shedding, are more complex than previously thought, influencing canopy greenness.
Research reveals two distinct periods of lake existence in the region, with increased precipitation driving formation during warmer periods. The study's findings suggest a potential analogue for future climate change and highlight the importance of understanding El Niño-driven precipitation patterns in arid regions.
A study of the scarlet monkeyflower found mixed results for demographic compensation as a means of avoiding population declines in response to changing climate conditions. Despite increases in flowering rates, many southern populations declined due to reduced survival and growth rates.
Researchers at the University of Southern Denmark have developed a new method to rapidly transform the soft body of jellyfish into a crunchy treat. The technique, which uses ethanol, produces crispy jellyfish chips that could be of potential gastronomic interest.
Researchers at Colorado State University explore how climate change impacts the evolution of organisms and propose a novel approach to understanding eco-evolutionary feedback dynamics. The study suggests that evolutionary changes in response to climate change may accelerate or mediate the warming trend.
A new study reveals that global grazing lands have increased year-to-year precipitation variability, constraining livestock support and food security. Regions with high variability support lower livestock densities and are already marginal for crops.
A global precipitation database analysis suggests that approximately 14% of the Earth's surface experiences annual precipitation dependence on the previous year, while 76% does not. This finding provides a framework for assessing long-lasting changes in rainfall by considering natural variability.
A new study reveals genetic variations in blood vessel inflammation and drug metabolism genes increase the risk of severe dengue shock syndrome in Asians and Europeans. These genetic factors can be used to develop targeted treatments for vulnerable populations.
A new study suggests that increased precipitation in the East Asian region led to erosion and the transport of dust into the North Pacific Ocean, which in turn fertilized the ocean surface waters, pulling carbon dioxide out of the atmosphere. This process may have contributed to a cooling of the Earth's climate 2.7 million years ago.
A comprehensive map of butterfly evolution has been created using a 35-fold increase in genetic data, revealing key relationships between species and classification units. The study confirms swallowtails are a sister group to all other butterflies, while blues are nested within hairstreaks.
A study on humpback whales' skin microbiome found that nearly all whales had six core communities of bacteria, which changed with seasonal and environmental conditions. Monitoring these microbes could aid in assessing the whales' health and detecting climate change impacts.
The Southeast US has experienced colder winters despite global warming, according to a Dartmouth-led study. The polar vortex allows arctic air to plunge into the region, resulting in persistently cooler temperatures. This phenomenon, known as the U.S. warming hole, is linked to natural climate cycles and potentially to climate change.
A recent Princeton University study found that highlighting the pride people will feel if they take pro-environmental actions may be a better way to change environmental behaviors. Participants who were exposed to anticipation of pride consistently reported higher pro-environmental intentions than those exposed to anticipated guilt.
Researchers have detected a significant acceleration in sea level rise since 1993, with ocean waters moving up the shore by almost 1 millimeter per decade. This acceleration means that the next generation will experience a far different landscape due to rising sea levels, posing significant concerns for vulnerable areas like Tampa Bay.
The G-Range model allows for single-process global simulations, providing insights into rangeland resilience to climate change. It supports policymakers in making informed decisions on rangeland management policies and practices.
Researchers have discovered that narwhals congregate near glacier fjords with specific physical properties, suggesting a preference for freshwater environments. The study aims to better understand the impact of climate change on these elusive marine mammals.
Researchers at Utah State University developed a method using aerial imagery to estimate river discharge, filling data gaps in smaller rivers and streams. The approach combines image processing techniques and hydraulic modeling for accurate flow estimates.
A 5000-year study of Amboseli National Park in Kenya reveals rapid environmental changes caused by human activities, including the arrival of Massai people and the ivory trade. The findings highlight the need to manage national park boundaries more strictly to keep pace with climate change.
Global ozone decline since the 1970s persists, with unexpected decreases in lower stratosphere preventing recovery at lower latitudes. Scientists point to climate change and short-lived substances as potential causes.
Oceanographers Paul Falkowski and James J. McCarthy have been awarded the prestigious Tyler Prize for Environmental Achievement for their decades-long efforts to understand and communicate the impacts of climate change. Their research, focusing on marine ecosystems and nutrient cycles, has significantly advanced our understanding of hu...
Recent publications by Dr. Joseph Michalski and colleagues cast doubt on the idea of surface life evolving on Mars due to extremely cold and dry climate conditions. However, they suggest subsurface life is a promising option, focusing exploration on hydrothermal deposits.
A study by the University of Leeds found that no country satisfies basic human needs while using resources sustainably. The research analyzed 151 countries and their resource use and well-being achievements, revealing that only wealthy nations like the US and UK meet basic needs without exceeding global environmental limits.
Mercury is a toxic contaminant with significant health risks to humans and wildlife, primarily through methylmercury in fish consumption. The international treaty on mercury, the Minamata Convention, has been ratified by 84 nations, emphasizing the need for scientific understanding to inform policy decisions.
A new study reveals polar bears have higher metabolic rates than previously thought, emphasizing their energy demands and foraging success. As Arctic sea ice declines, polar bears will face reduced access to seal prey and increased travel costs, potentially leading to population decline.
A new study found that pink sea urchin species are less vulnerable to climate change than other urchin species. The species is abundant at depths similar to spot prawn fishers and produces edible roe during winter. Legalizing fishing of pink sea urchin as bycatch could relieve pressure on vulnerable species.