Articles tagged with Anthropogenic Climate Change
Scientists analyzed rock samples from four Andes Mountains glaciers, finding they are smaller now than any time in the past 11,000 years. This suggests the tropics have already warmed beyond predicted limits, crossing a critical benchmark for glacier classification.
Research by the Royal Ontario Museum identifies Great Salt Lake as a significant source of greenhouse gas emissions, with 4.1 million tons released in 2020. The study highlights the importance of considering desiccation of lakes and rivers in assessments of global greenhouse gas output.
A recent analysis suggests that the optimal fingerprinting method (OFM) can be improved to enhance its usefulness and accuracy in assessing climate tipping points. The study highlights the limitations of current methods and proposes a new approach that combines theoretical and dynamical reasoning.
Research shows that ocean warming and acidification could lead to catastrophic shark embryo survival decline by 2100. Monthly temperature variation plays a significant role in mortality rates.
A recent study analyzed 333,635 English tweets on man-made climate change, identifying four main narratives and common stances on the topic. The analysis highlights the challenges of addressing climate change adaptation and mitigation measures, as well as the need to counter misinformation and conspiracy theories.
A recent study by Oregon State University found that US adults are fairly confident in linking wildfires and heat to climate change, but less so for hurricanes, flooding, or tornadoes. The survey also revealed significant differences in responses based on politics, personal experience, and demographics.
Human-caused nitrous oxide emissions accelerated globally, reaching a record high in 2022, with the agricultural sector accounting for 74% of emissions. The use of chemical fertilizers and animal manure is particularly significant contributors to this growth.
A study found a strong association between media diet and science-consistent beliefs about climate change, with far-right media having a stronger negative impact on climate change beliefs and support for a carbon tax. Exposure to centrist and science media was positively associated with these beliefs.
A new study finds that the US Drought Monitor is not keeping pace with climate change, leading to frequent severe droughts being classified as rare. The consequences are dire, with some regions spending more time in extreme drought conditions than federal guidelines allow, potentially leaving them without adequate aid.
Research detects declines in bees and butterflies in western and southern North America due to environmental change and habitat loss. The study identifies regions of concern and highlights the need for conservation efforts and improved monitoring methods.
A team of researchers found that the current rate of atmospheric carbon dioxide increase is 10 times faster than at any other point in the past 50,000 years. The study provides new insight into abrupt climate change periods and potential impacts of climate change today.
A new computer algorithm developed by University of Oxford scientist Samar Khatiwala can drastically reduce the spin-up time of Earth System Models, enabling researchers to investigate subtle changes in model parameters and define uncertainty more accurately. This breakthrough could lead to better predictions of future climate change a...
Research reveals that the East Asian Monsoon delivers high levels of pollutants to the upper atmosphere, where they can influence the climate system. The findings raise questions about the pace of ozone layer recovery and highlight the need for further research into the implications of these pollutants.
Oasis growth and loss have been tracked globally over 25 years, with significant increases in Asia due to intentional expansion. However, desertification has led to a substantial loss of approximately 134,000 square kilometers of oasis land worldwide.
New research by Bangor University reveals that summer storms help maintain healthy oxygen levels in deep waters around the UK. The study shows that oxygen mixing can slow the development of a summer oxygen deficit, improving ocean health.
A new report by a team of experts outlines an approach that combines Indigenous knowledge with Western science to develop more resilient forest management practices. The 'braided' approach aims to promote the health and diversity of forests, which are increasingly threatened by climate change.
A new study by Johns Hopkins University reveals that California is the nation's greatest emitter of sulfuryl fluoride, a common pesticide. The majority of emissions come from structural fumigation in just a few counties, contributing to global warming.
A new study finds that extreme tropical cyclone rainfall is increasing across the continental US, while climate warming restricts 'outdoor days' for people living in developing countries. Additionally, air pollution increases mortality risks from heat, especially when combined with other factors like wildfires and reduced aerosols.
A young researcher from the University of Copenhagen has made a surprising discovery of high concentrations of methane in meltwater from three Canadian mountain glaciers. The findings challenge previous assumptions that methane in meltwater could only be found in oxygen-free environments under large ice masses.
A major research programme found that climate change risks to human and natural systems greatly increase with global warming, leading to droughts, flooding, crop yields decline, and loss of biodiversity. Limiting global warming to 1.5 ºC could reduce these risks by up to 61% in some countries.
Research suggests polar climates are adjusting to a warming climate with changes in regional climate dynamics. Altered ocean-sea ice interactions may be driving recent fluctuations in sea ice extent, according to new studies.
Research by Dr. Armineh Barkhordarian finds that Arctic marine heatwaves will become a regular occurrence, with average temperatures rising 2.2 degrees Celsius above seasonal norms. The study suggests that annual heatwaves will be the norm, with significant negative impacts on the ecosystem.
A new study reveals that introducing a simple, renewable chemical to the pretreatment step can make next-generation biofuel production cost-effective and carbon neutral. A CELF biorefinery can more fully utilize plant matter than earlier methods, resulting in sustainable aviation fuel at a break-even price of $3.15 per gallon.
New research reveals permafrost's dominant role in shaping Arctic rivers and storing massive amounts of carbon. Thawing permafrost could unleash billions of tons of CO2, exacerbating climate change.
Researchers uncover key mechanisms behind 2021's Pacific Northwest 'Heat Dome', attributing it to human-caused warming and natural systems. The study reveals the interplay between atmospheric dynamics, soil moisture, and climate change shapes extreme weather conditions.
A new Dartmouth study finds that seasonal snowpacks have shrunk significantly over the past 40 years due to human-driven climate change. The sharpest global warming-related reductions are in the Southwestern and Northeastern United States, as well as in Central and Eastern Europe.
A new study by ICTA-UAB shows that pursuing higher economic growth may jeopardise the Paris goals and leave no viable pathways for humanity to stabilise the climate. Slower growth rates make it more feasible to achieve the Paris goals, with lower economic growth reducing CO2 emissions by 10-13% by 2030.
A 1916 study by Eugene Clyde La Rue estimated the Colorado River discharged just 15 million acre-feet of water, but was ignored in favor of a higher estimate. Today, the river's actual flow is around 13 million acre-feet per year, prompting calls for improved estimates and Indigenous involvement in managing the water.
New data analysis reveals that regional temperature patterns are crucial for evaluating climate models, with warmer temperatures in the North Atlantic and a cooler North Atlantic found to be more accurate. This approach provides better insights into the spatial impact of climate change and its effects on ecosystems and human societies.
A new study of 600 years of tree rings from the San Joaquin Valley reveals that climate extremes have been more severe and lasted longer than modern records, highlighting flood and drought risks in California. The research combines paleo information with synthetic weather generation to help understand and anticipate these risks.
Researchers found a tradeoff between fast growth and heat tolerance in corals, with thermally sensitive algae dominating faster growth but only in cooler water. This study helps predict reef futures and inform conservation strategies, highlighting the complexity of coral growth on a reef.
A study led by Indiana University researchers explores the potential of climate engineering to slow Antarctic ice loss through stratospheric aerosol injection. The approach could buy time to address climate change and avoid catastrophic sea-level rise.
Research by Dominik Stolzenburg reveals that aerosols from volatile organic substances can cluster together to form condensation nuclei for water vapor. This process affects cloud density and global warming, potentially offsetting the effect of CO2 increases on climate change.
Researchers found that anthropogenic climate change heightens risks of spatially compounding flooding and heatwave events, with likelihood increasing tenfold by mid-21st century under high-emissions scenario. Adopting low-emissions scenario could reduce this likelihood to seven times more probable.
Researchers have made a breakthrough in studying species evolution by using robotic video microscopes and computer vision to measure embryo characteristics. The study found huge changes in an embryo's observable traits before and after developmental events, suggesting that measuring timings of development is just the tip of the iceberg.
Researchers found that green spaces alleviate extreme heat's negative impacts on human health, while densely packed buildings increase mortality risk. Urban design strategies incorporating different types of greenery are recommended to mitigate heatwave-associated mortality.
A new research project will explore the potential for low-lying coral atoll islands to survive the impact of rising sea levels, contradicting previous forecasts. The five-year £2.8m ARISE project will conduct extensive field tests and laboratory experiments in the Maldives and Pacific.
A new study by Colorado State University reveals that seismic signals show a growing intensity in ocean waves since the late 20th century, attributed to global warming. The research indicates that storms are becoming more intense and wave energy is increasing globally, posing a serious threat to coastal ecosystems and infrastructure.
An international team of scientists has updated its influential report, warning that life on Earth is under siege due to climate change. The authors track 35 vital signs and find 20 at record extremes, including rising temperatures, wildfires, and food insecurity affecting 735 million people.
Researchers have found that water temperatures between 20-25 degrees Celsius are at the greatest risk for developing dangerous levels of microcystin, a common algae-produced toxin. Climate change is expected to increase blue-green algae populations, posing serious health hazards and economic risks.
A new study published in Conservation Physiology identifies the critical limits of plant function under stress, enabling more effective conservation strategies. By understanding these limits, conservationists can identify vulnerable species and allocate resources more wisely.
In the wake of Hurricane Harvey's record flooding, researchers discovered a unique form of evolutionary change called spatial sorting that dominated the evolution of Jadera haematoloma bugs. This rapid adaptation allowed them to access seeds on goldenrain trees, outcompeting native species with longer beaks.
Researchers propose MXene and MBene compounds for capturing carbon dioxide from the atmosphere, leveraging their high selectivity and mechanical stability. These two-dimensional materials can be engineered to selectively capture CO2, offering a potential solution to curb global warming.
Scientists point to non-CO2 emissions, carbon dioxide removal, and halting deforestation as key strategies to slow global warming. Current pledges fall short of the 1.5-degree goal, but adjustments in climate pledges can bring it within reach.
Researchers investigated Japan's market for incorporating greener plastics to achieve carbon neutrality. They found that bioplastics have the lowest global warming potential, while recycled plastics are cheaper but with lower quality and recyclability. A robust recycling system is crucial to ensure quality assurance.
Oregon State University economist Bill Jaeger concludes that 30 years of international treaties on climate change are insufficient due to long delays between cost reduction and benefit realization. Courts recognizing climate rights could add leverage, giving voice to future generations.
A US study found that increasing nest temperatures affects leatherback hatchling morphology, performance and hatching success. Mid-season nests had the highest hatching success and better physical performance.
The State of the Climate report confirms record highs in greenhouse gas concentrations, global sea levels, and ocean heat content. Scientists from over 60 countries contributed to the annual review, providing a comprehensive update on Earth's climate indicators and notable weather events.
Researchers analyzed tree-ring data and historical records to reconstruct rainfall totals in the eastern Amazon. They found that recent extreme floods may not have exceeded natural hydroclimatic variability, but could still pose devastating consequences for a growing population living in high-risk areas.
A new study reveals that volcanic eruptions can temporarily weaken the Pacific Walker Circulation, a major driver of global precipitation. The recent strengthening of this circulation suggests that aerosols from human activity may have an opposite effect on its behavior.
A new modeling tool called REBURN can simulate large forest landscapes and wildfire dynamics under different management strategies. The tool shows that setting prescribed burns and allowing smaller wildfires to burn can yield more varied and resilient forests over time.
The Colorado River Basin has lost approximately 40 trillion liters of water between 2000 and 2021 due to climate change, equivalent to the entire storage capacity of Lake Mead. The rapid reduction in runoff is largely responsible for this water loss, with warming temperatures leading to a 10.3% decrease in flow rates.
Researchers at UC Santa Barbara's Climate Hazards Center have made significant advancements in predicting droughts and food shortages in the Eastern Horn of Africa, enabling agencies to take effective actions and provide humanitarian assistance. These early warnings have helped prevent devastating famines and saved millions of people f...
A recent study found significant changes in ocean color over the past two decades, affecting 56% of the world's oceans. The shift in color indicates changes in marine ecosystems, with tropical regions becoming greener due to human-induced climate change.
A study examines over 20,000 newspaper articles from Brazil to understand changes in marine biodiversity over the past 180 years. The research found that high-trophic level species decreased in frequency while low-level organisms increased, reflecting broader trends of overfishing.
A new study reveals that human activity can shape global plant distribution, with slow-growing plants vulnerable to land use effects. Human land use is a significant driver of biodiversity loss and ecosystem change, particularly in areas with high biodiversity.
A University of California, Riverside-led team found that anthropogenic aerosol-driven changes in ocean circulation and interbasin heat transport are more effective in altering oceanic heat distribution than those driven by globally increasing greenhouse gases. This advance in understanding will help develop climate mitigation strategies.
Researchers develop new approach to quantify respiration and its temperature sensitivity in terrestrial ecosystems. Their findings suggest lower temperature sensitivities than previously thought, but caution that natural components alone cannot mitigate climate change.
Scientists tracked activity levels of southern African antelope species to understand their response to higher heat, finding that small springbok are most affected. The study highlights the importance of managing land sustainably to mitigate ecosystem changes.
A new study found that the global food system is responsible for a third of man-made greenhouse gas emissions, with beef and dairy consumption being the largest contributors. The study suggests that adopting a more plant-based diet could help reduce emissions and mitigate climate change.