Articles tagged with Anthropogenic Climate Change
A recent study analyzed samples from eight research stations across the Arctic, revealing that organic aerosols come mainly from human activity in winter but from natural sources in summer. The researchers also mapped black carbon concentrations and origins in each region, providing insights for targeted pollution reduction measures.
New Penn State research found that the maximum wet-bulb temperature for humans is lower than previously thought, at around 31°C in warm-humid environments. This finding has significant implications for planning and preparing for extreme heat events.
Researchers detect hundreds of major methane releases linked to global oil and gas extraction activities, with a one-year comparison to 20 million vehicles. Limiting these emissions could mitigate climate effects and save billions of dollars for fossil-fuel-producing countries.
A new study finds that climate change will lead to an increase in kidney stone cases, even with mitigation efforts. Researchers predict a cost of $57-99 million to the US healthcare system over seven decades, with a steeper impact if no action is taken.
Tropical seagrass meadows may not be as effective in absorbing carbon dioxide as previously believed. According to a new study, some of these ecosystems actually release more CO2 into the atmosphere than they store. This finding is significant for accurately calculating their climate protection potential.
Researchers have standardized black carbon measurements in the Arctic, improving our understanding of climate change. By correlating absorption coefficients with COSMOS measurements, they derived reliable conversion factors for various instruments, enabling more accurate climate modeling and air quality assessments.
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.
Researchers used stalagmites from Jiangjun cave in China to study the response of the Indian summer monsoon to meltwater pulses in the North Atlantic. The analysis revealed that a stronger meltwater pulse caused a drastic reduction in monsoon intensity, while minor events had less impact.
Climate change has already altered 20% of the Earth's landscapes, and this trend is set to triple under business-as-usual emissions growth. The research found fundamental shifts in life zones, with boundaries shifting poleward and towards higher elevations, affecting tropical and temperate climates.
Researchers explore harnessing China's wind energy to produce carbon-free green hydrogen at a lower cost than coal-derived black hydrogen. Shifting from black to green hydrogen could reduce 100 million tons of CO2 emissions per year by 2030.
The University of Kansas team is creating new models to forecast water availability in Kansas, accounting for climate uncertainty. The project will improve tools for the Kansas Water Office to incorporate climate variability into future water supply planning.
A new study reveals that compound hot extremes, where days and nights are simultaneously extreme, pose significant health risks, especially for female and older residents. Urban compound hot extremes have increased by 1.76 days per decade in eastern China, driven by anthropogenic emissions and urbanization.
Research found strong correlation between Arctic black carbon abundance and mid-latitude biomass burning, indicating models underestimate BC contribution from biomass burning by a factor of three. This has significant implications for Arctic warming and climate change.
A new study suggests that aviation could consume up to one-sixth of the remaining temperature budget to limit warming to 1.5°C by 2050. Reducing CO2 emissions annually is crucial to avoid further warming.
Researchers found that the 2013-2015 heatwave known as 'the Blob' reduced the Pacific Ocean's ability to absorb carbon dioxide, leading to a decrease in its role as a carbon sink. Microbial communities responded by shifting towards more nutrient-limited conditions, hindering the ocean's biological pump.
The study suggests that unsustainable wood harvesting by the Ancestral Puebloans occurred around 2000 years ago in Chaco Canyon, USA. This practice had significant ecosystem impacts, which are still being felt today.
Participants preferred policies that used incentives to encourage eco-friendly choices, particularly when they targeted businesses. In contrast, policies that focused on energy alternatives and used incentives were also supported. The researchers found that policy support was influenced by the type of change targeted, who was targeted,...
Research led by VUB team shows that global changes in lake temperature and ice cover are caused by human-induced climate change, posing a threat to water quality and native fish species.
Researchers analyzed an ice core from Greenland and found that fires in the North Atlantic region decreased over 4,500 years ago due to weaker summer insolation and expanding glaciers. Human interference, such as Viking colonization, also played a role in reducing fire frequency.
Ancient human societies adapted to tropical ecosystem dynamics, revealing their adaptability and resourcefulness. By studying these past interactions with the environment, scientists can better understand how to conserve tropical environments.
The coastal Northeastern US is heating at a rate twice as fast as other regions, driven by rapid ocean warming and changes in atmospheric circulation. Significant summer warming along the coast is also occurring.
The study found that tropical forest edges are releasing large amounts of carbon into the atmosphere due to increased tree mortality. By 2100, the proportion of forest edges is projected to increase from 31% to almost 50% if deforestation rates remain high.
A new study simulates global warming at unprecedented resolution, revealing that increasing CO2 concentrations will weaken the intensity of the ENSO temperature cycle. This could lead to fewer El Niño and La Niña events, with potential implications for rainfall extremes.
A team of scientists from Princeton University found that the Arctic Ocean's nitrogen supply is limited by strong stratification, preventing plankton growth and potentially affecting fish populations. The research used fossilized plankton to study the history of nitrogen sources and supply rates in the western and central Arctic Ocean.
A study found that the Australian bushfires had a more significant impact on global climate than pandemic lockdowns, cooling the planet by about .06 degrees Celsius. The fires injected sulfates and other particles into the atmosphere, disrupting the climate system and influencing storm tracks.
A new review paper assesses heat and freshwater changes in the Indian Ocean, finding some consistent responses to anthropogenic global warming. However, observational records are still too short to distinguish natural variability from man-made changes.
A comprehensive study by Artyom Gusarov found that soil erosion and river sediment load decreased significantly in European Russia. Climate change and warming of near-soil air led to reduced frosting and decreased erosion-inducing sediment from tillage in the steppes.
A new study found that human-induced global warming is responsible for 37% of all heat-related deaths globally, with Central and South America and South-East Asia most affected. Cities like Santiago de Chile, Athens, and Tokyo saw significant increases in mortality due to climate change.
Climate-driven ocean acidification and deoxygenation impact the California Current, leading to increased phytoplankton biomass and subsurface respiration rates. This eutrophication can reduce oxygen concentrations and pH levels, with potential effects on fisheries and aquatic ecosystems.
Research by Swansea University highlights the importance of taking a wider approach to wellbeing influenced by issues like inequality and climate change. The study presents a transdisciplinary framework to understand and improve wellbeing, emphasizing the need for focused efforts to tackle societal challenges.
Global agricultural productivity has slowed by 21% since 1961 due to climate change, with the impact being more severe in warmer regions. The study finds that areas like Africa, Latin America, and the Caribbean are already experiencing slower growth rates, highlighting the need for increased climate resilience.
A Cornell-led study found that climate change has slowed global agricultural productivity growth by 21%, or about seven years, since the 1960s. The research used an econometric model linking weather changes and productivity measures to quantify the impact of human-caused climate change on total factor productivity.
A recent study published in Nature Communications found that global warming poses significant threats to the habitats of approximately 11,500 freshwater fish species worldwide. Limiting global warming to 1.5 degrees Celsius can reduce the number of species at risk from over half to just 4%.
A recent study by ETH Zurich reveals that climate change has a globally visible influence on rivers, with complex patterns emerging worldwide. The research analyzed data from 7,250 measuring stations and found that river flow changed systematically between 1971 and 2010.
A new study finds that climate change is the causal driver influencing the magnitude of global river flows. The analysis of thousands of time series from around the world revealed recent spatially complex hydrological trends, with rivers in some regions drying up and flowing less while others are growing wetter.
Climate change is altering habitats, forcing animals to migrate across national borders, which are fortified with walls and fences. The study highlights the potential ecological damage of 32,000km of borders, including the USA-Mexico border wall, China-Russia border fence, and India-Myanmar border fencing.
A new study reveals that human-induced climate changes have increased the occurrence probability of record-high SSTs in the northwestern Pacific Ocean from once-in-1000 years to once-in-15 years. The warming trend, accelerated since the 1980s, may intensify tropical cyclones and cause severe damages to East Asian countries.
Scientists have discovered that ancient wetlands experienced increased methane cycling during the Paleocene-Eocene Thermal Maximum, an ancient global warming event. This finding suggests that rapid global warming can disrupt methane cycling in wetlands, potentially exacerbating climate change.
The CriticalEarth programme aims to develop climate scientists skilled in advanced mathematical theories and the physics of Earth systems. The project addresses two key challenges: abrupt climate shifts and uncertainty in temperature rise predictions.
A new study from Cardiff University shows that direct messages sent via Facebook chat can significantly reduce the amount of red and processed meat consumed by individuals. Participants reported a significant decrease in their meat consumption, with some even expressing a desire to reduce other types of meat they consume in the future.
A study published in PNAS found that global warming accelerates biodiversity loss, putting existing and proposed post-2020 biodiversity targets at risk. However, the authors suggest that dynamic responses to climate change through flexible conservation approaches can help protect biodiversity.
Research reveals that many songbird parents displace nestlings too early, reducing the offspring's chances of survival. However, this behavior allows parents to minimize risks and increase their own likelihood of raising at least one offspring to independence.
A study suggests the probability of another 'Day Zero' drought in Cape Town will increase due to anthropogenic emissions. By 2100, the likelihood rises from 0.7% to 25% under an intermediate emission scenario, highlighting emerging drought risk in arid regions.
Scientists have developed a method to detect radical changes in ecosystems, revealing increased risk of extinction and new species creation. The method tracks ecosystem shifts above a certain threshold, allowing researchers to predict and mitigate the impact of environmental changes.
Researchers have found that interglacials were more frequently skipped in the past than previously thought. The study used a new approach to analyze climate data, separating temperature and sea level change influences, and found repeated irregularities during the last 2.6 million years.
A study estimates that long-term exposure to air pollution increases COVID-19 deaths by 15% globally, with higher proportions found in Europe and East Asia. Air pollution exacerbates health outcomes by aggravating co-morbidities and causing inflammation, leading to increased vulnerability to COVID-19.
Researchers at the University of Helsinki found that thawing permafrost releases volatile organic compounds, including monoterpenes and diterpenes, which can be highly reactive and contribute to cloud formation. The study's findings introduce new uncertainties to climate change modeling.
A new land surface model CAS-LSM was developed to assess impacts of climate change and anthropogenic disturbances on global river temperature and nitrogen transport. The model found increased river temperatures in tropical zones due to climate change, with power plants warming local rivers by up to 60% in Asia.
Marine heatwaves have increased significantly due to global warming, with major events becoming more frequent and prolonged. The probability of such events has risen massively, posing a serious threat to marine ecosystems and their ability to recover.
A new study reveals that severe marine heatwaves are more likely to occur now than before human-induced global warming began. The study found that the probabilities of high-impact MHWs occurring have significantly increased due to anthropogenic climate change.
African dust provides essential nutrients for Amazonian soil fertility and helps offset soil losses. The study found significant quantities of dust are deposited in the heart of the Amazon Basin, contrary to previous estimates.
A new global climate reference curve reveals the natural variability and extreme climate events that occurred during warm climate states over the last 66 million years. The study provides context for ongoing anthropogenic change and its potential to exceed natural variability.
A study forecasts rates of water-induced soil erosion, finding increased erosion under all climatic conditions across countries. Conservation agriculture is necessary to mitigate future soil erosion and ensure food security, according to the authors.
A recent study found that human-induced climate change is responsible for changes in global average water availability on land during the dry season. The research analyzed data from 1902 to 2014 and showed a reduction in average water availability at a global level, with some regions experiencing increased humidity.
A study found that national governments resist World Heritage 'in Danger' listings despite the sites being equally or more threatened than those already on the list. Low visibility strategies and industrial lobbying are prevalent in blocking environmental governance.
Scientists are working on establishing an early warning system for sudden changes in the Atlantic Ocean's sea currents. These changes can impact global temperatures and climate patterns. By monitoring temperature and density metrics, researchers aim to detect subtle shifts before they become catastrophic.
Researchers argue that agriculture's contribution to greenhouse gas emissions is overstated and may even have a net positive effect on the climate. Per Frankelius proposes seven measures to reduce emissions while advancing sustainable agriculture.
A new study published in Nature Climate Change reveals the South Pole has warmed at a rate three times the global average over the past 30 years. The warming trend was mainly driven by natural tropical climate variability, with greenhouse gas increases likely intensifying the effect.
A recent study suggests that long-distance migratory birds are not declining due to an inability to advance their spring migration timing in response to climate change. Instead, improvements in wind conditions and land-use changes play a major role in shaping bird population sizes.
The new FOCI system allows for high-resolution ocean and climate modelling over centuries to millennia, enabling researchers to study natural climate fluctuations and anthropogenic climate change. With its modular design, FOCI can be configured to investigate various research questions and improve the accuracy of model simulations.