Articles tagged with Anthropogenic Climate Change
New research highlights how climate change enhances wildfire risk globally, but human actions and policies can mitigate regional impacts. The study assesses 500 previous papers and examines future fire weather trends to provide insight into the success or failure of climate policies.
A recent NTU Singapore study finds that climate change is a stronger driver of increasing atmospheric methane than expected, leading to more heat being trapped in the atmosphere. The research suggests that nature could be producing more and consuming less methane than previously realized, contributing to higher methane emissions.
Researchers analyzed historical data from ice ages to understand how cold-adapted Arctic mammals responded to severe climate fluctuations. The study identified common patterns in the responses of different species and provided new models for interpreting their behavior.
A study by Dr. Armineh Barkhordarian confirms a systematic warming pool in the Pacific caused by human activities, leading to increased frequency and intensity of local marine heatwaves. The region has experienced 31 marine heatwaves over the past 20 years, compared to just nine between 1982 and 1999.
A pioneering study shows that climate change was the primary driver of the location of ancient coral reefs, which once extended far beyond the tropics. The researchers used habitat modeling and reconstructions of past climates to predict the distribution of suitable environments for coral reefs over the last 250 million years.
A new article in BioScience argues that incremental changes are insufficient to address planetary emergencies, and calls for broader system-wide changes to governing interactions between climate, biodiversity, and society. The authors hope their work will inform the setting of biodiversity objectives and targets.
A new report from the InterAcademy Partnership highlights the severe impacts of climate change on human health, including increased risk of heat-related illnesses and food insecurity. The report calls for urgent action to reduce greenhouse gas emissions and strengthen disease surveillance systems to mitigate these effects.
The European drought event from 2018 to 2020 was the most intense in over 250 years, affecting approximately one third of the land area. The drought's total duration was unusually long, starting in April 2018 and ending in December 2020.
Researchers discovered zones of bubbling methane flux in Laptev and East Siberian Seas, contributing to climate warming in the Arctic. The study suggests that thawing permafrost and warming waters are releasing methane from hydrates into the atmosphere.
A new online portal developed by UKCEH enables forecasters to provide communities with more reliable warnings about large storms in the Sahel region. The portal uses state-of-the-art weather forecast models to predict storm behavior, taking into account factors such as land surface temperatures, soil moisture, and atmospheric humidity.
Researchers identified glacial refugia for Campanula americana and found that populations nearest the refugia had highest potential for speciation. This discovery highlights the importance of conserving habitats in Southeastern regions.
Scientists have partnered with park rangers in Ecuador to monitor butterfly populations, which serve as an indicator of ecosystem health. This approach aims to provide a more comprehensive understanding of biodiversity changes over time, addressing the limitations of traditional conservation methods.
Jeanine Ash is part of a US effort to recover sediment cores from the West Antarctic Ice Sheet, which will help answer questions about sea level rise and global warming. The team aims to drill through up to 1,000 feet of ice in two places on the Ross Ice Shelf.
Researchers found that favorable local climate change led to chronic warfare in ancient Peru, as neighboring regions experienced droughts and migrants put pressure on the agricultural economy. The study suggests that climate change can harm all populations, either directly or indirectly, through destabilization and refugee crises.
A study of 2021's extreme weather events in China, the US, Canada, and Europe found a mix of natural and human-caused factors at play. The research highlights the need for real-time climate event attribution systems to better understand and adapt to climate change.
Researchers found that warmer and longer autumn conditions made it less likely for green-veined white butterflies to survive winter. The butterflies used more energy under these conditions, which can lead to lasting negative consequences, including reduced fitness.
Researchers used climate models and observations to analyze Arctic temperature changes over the 20th century. They found that both natural and human activities contributed to the cooling from 1940 to 1970, with aerosol forcings being a primary factor.
Scientists confirm a brief rise in CO2 emissions before the Paleocene-Eocene Thermal Maximum (PETM), an abrupt global warming event. The study reveals unique insights into how Earth's current climate could respond to continued carbon emissions.
Research led by Dr. Petra Holden from the University of Cape Town found that catchment restoration through alien tree management can reduce climate change's impact on drought streamflow. The study shows that clearing moderate levels of invasion can result in a 3-16% amelioration of human-derived climate change impact.
A new study provides evidence of growth limitations in Antarctic fish, which have adapted to survive in freezing temperatures. Despite similar ecological conditions, these fish consume less food and grow at half the rate of temperate water cousins when held at the same temperature.
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.
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.
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 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.
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.
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.
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,...
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.
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.
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.
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 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 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.
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.
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.