Articles tagged with Anthropogenic Climate Change
A high-resolution land surface model improves streamflow and soil moisture simulations over the Sanjiangyuan region. Natural climate change dominates changes in terrestrial hydrology, while anthropogenic climate change mainly affects ground temperature.
A global analysis by Columbia Engineers reveals a significant increase in storm runoff extremes driven by both climate change and human-induced changes. The study suggests that projected responses of storm runoff extremes will dramatically increase, threatening ecosystem resilience and infrastructure systems.
Century-scale climate variability was enhanced when the Earth was warmer during the Last Interglacial period compared to current interglacial conditions. The study reveals series of century-scale arid events in southern Europe and cold water-mass expansions in the North Atlantic.
Researchers Colin Carlson and Christopher Trisos call for caution on climate engineering, citing the need for quantitative evidence and solid data. They hope to shed light on potential health consequences over the next two years, as climate change and geoengineering become increasingly intertwined.
Princeton University researchers have discovered a precise timeline for the Columbia River flood basalts, which they believe caused ancient global warming. The team's use of tiny zircon crystals has provided an unprecedented level of precision, revealing that 95% of the eruptions occurred within a 750,000-year window.
Researchers found pink noise energy signatures in historical climate proxy data before and after the Industrial Revolution, suggesting a possible link between pink noise and Earth's climate dynamics. The study's findings could have implications for understanding 'resonances' that couple and amplify warming processes.
Researchers found that major Arctic rivers have increased alkalinity production over the past 40 years, potentially offsetting the negative effects of climate change. This increase in riverine alkalinity could be triggered by thawing permafrost, changes in acid deposition, and other human activities.
A new OU study shows that climate warming accelerates temporal turnover rates of soil bacterial and fungal communities, affecting ecosystem predictability. The research finds divergent succession of microbial communities under climate warming, with reduced stochasticity and dynamic drivers.
Ben Kirtman, a University of Miami Rosenstiel School professor, has been recognized as an American Meteorological Society Fellow for his outstanding work in weather, water and climate. He is known for developing prediction systems and studying the limits of climate predictability.
Researchers have identified a human 'fingerprint' in the troposphere, indicating significant effects of anthropogenic climate change on seasonal temperature cycles. The study used satellite data for nearly 40 years to isolate the signals of human activity from natural variability.
Changes in land use significantly impact CO2 storage in vegetation and atmospheric concentration. Deforestation can lead to reduced capacity for plants and soil to absorb CO2.
Researchers recorded narwhals in East Greenland, capturing six hours of audio that revealed three types of sounds: clicks, buzzes, and calls. The study found that narwhals produce buzzes at greater depths than clicks, and that a particular fjord had high buzzing rates, suggesting a preferred feeding area.
A new study found that climate change is amplifying the relationship between lightning-ignited fires and rising temperatures across the Southern Hemisphere. The strongest impact on fire activity was attributed to the Southern Annular Mode, which is expected to continue due to increasing greenhouse gas levels.
A new study documents how a North American butterfly evolved complete dependence on an introduced European weed, leading to its local extinction when humans eliminated the plant's availability. The study supports the argument that rapid climate change will prove detrimental to biodiversity.
New research shows human influence on climate change will fuel more extreme summer heat waves in the western U.S., including California and the Southwest. The study predicts man-made climate change will be a dominant driver for heat wave occurrences in specific regions by 2030 and 2050.
Intact forests are crucial for addressing climate change and protecting wildlife, critical watersheds, indigenous cultures, and human health. The study recommends prioritizing forest conservation based on their relative values, highlighting the need for global policy interventions to safeguard remaining intact forests.
A Yale-led survey found that long-term research is crucial for advancing knowledge, particularly in addressing global change impacts. Scientists prioritize multi-site, observational, and experimental approaches over short-term experiments.
A recent review suggests humans have biological limitations that cannot be exceeded, despite advances in nutrition, medicine and science. Environmental changes, including climate change, could lead to decreased physical abilities and life expectancy.
Researchers investigate the effects of climate change on plant-pollinator interactions, exploring new techniques for measuring floral cues, rewards, and pollinator behavior. Studies reveal diverse tactics being used to deepen understanding of these complex relationships in a changing environment.
A study by University of California, Riverside researchers found that two Bahamian songbird species likely became extinct due to habitat loss caused by rising sea levels and a warmer climate. The birds' habitats were pine grasslands found in cooler regions, which were lost when the islands became more tropical.
Future electricity consumption in Europe is expected to decrease in Northern Europe and increase in Southern and Western Europe under rising temperatures. Daily peak usage is predicted to peak in summer instead of winter, affecting transmission infrastructure and storage requirements.
Research from Dartmouth College finds that warming sea surface temperatures in the tropical Pacific Ocean have intensified storm activity in the North Pacific. This has led to increased storminess in Alaska and Northwestern Canada, with some areas experiencing colder, wetter conditions as far away as Florida.
A new study suggests that human-caused warming is very likely responsible for the recent streak of record-breaking temperatures. The likelihood of experiencing consecutive record-breaking global temperatures from 2014 to 2016 without the effects of human-caused climate change is no greater than 0.03 percent.
A record-breaking marine heatwave, lasting 251 days and seven times larger than Tasmania, was driven by a surge of warm water in the East Australian Current. Climate change made this event several times more likely, with temperatures 2.9°C above normal.
The AAS Special Issue on the Chinese Carbon Budget Program presents research on accurate estimation of national GHG emissions, terrestrial carbon budget, and potential for increasing carbon sinks. Eight papers cover various topics, including aerosols, airborne observations, and CO2 monitoring from space.
UCSB scientists compared decades-old data with new field observations to evaluate multidecadal change in sandy beach biodiversity. They found that local processes exerted a stronger influence on intertidal biodiversity than regional factors.
Researchers at Tel Aviv University discovered basin-wide erosion rates incompatible with known tectonic and climatic regimes of the period. The findings indicate that human impact on the environment began significantly affecting the Earth's geology around 11,500 years ago.
A study by Lehigh University sociologist Dr. Kelly Austin finds a link between deforestation and increasing malaria rates across developing nations due to rural population growth, agricultural specialization, and increased standing water and sunlight favoring Anopheles mosquito species.
University of California, San Diego researchers found that phytoplankton and bacteria in the water affect sea spray aerosol's atmospheric-changing properties. This influences cloud formation and climate change.
Researchers found unprecedented dieback of 7400 hectares of mangroves in the Gulf of Carpentaria due to prolonged drought, record-breaking heatwaves, and a 20cm sea level drop. This discovery highlights mangroves' vulnerability to climate change and extreme weather events.
A recent study published in Journal of Climate reveals a detectable anthropogenic shift toward heavy precipitation over eastern China. The research suggests that greenhouse gas forcing is the primary driver of this change, with aerosol forcing offsetting some effects.
Ocean absorbing more carbon dioxide reduces atmospheric greenhouse gas levels, but promotes acidification in marine organisms. A study by UC Santa Barbara geographer Timothy DeVries and colleagues found that a slowdown of the ocean's overturning circulation is likely the cause.
Groundwater exploitation causes drying in deep soil layers but wetting in upper layers, leading to unsustainable terrestrial water storage. The atmosphere responds with cooling over certain regions and increased precipitation due to evapotranspiration from groundwater irrigation.
Research suggests that hurricanes approaching the US coast are more likely to intensify during less active Atlantic periods, weakening instead of strengthening. This relationship accounts for part of the weak correlation between Atlantic hurricane activity and major landfalls.
A new study published in Nature finds that hurricanes approaching the US coast are more likely to intensify during less active Atlantic periods, contradicting previous assumptions about hurricane behavior. This discovery suggests that coastal regions may be better protected by quieter periods in the basin.
A mathematical model by Carl Bergstrom and colleagues explores the effect of publication bias on fact canonization in science. The study found that lower publication rates for negative results increase the risk of false canonization, but suggest that publishing more negative results could help minimize this risk.
Researchers used supercomputer simulations to confirm the link between human-induced climate change and deadly heat waves in India and Pakistan. The study found a substantial increase in the likelihood of such heat waves, with chances expected to rise as global warming continues.
The Intergovernmental Panel on Climate Change (IPCC) should include ocean variability and regional projections in its reports to better understand the impacts of climate change on marine ecosystems. Experts from the University of Bristol and Tasmania recommend incorporating local stressors and regional projections into policy decisions.
Experts predict that soils will lose a significant amount of their carbon content, leading to increased soil erosion and flood damage. Land use changes and management practices are crucial to mitigate this trend and protect soil functions.
Climate model experiments suggest Northeast Asia has experienced abrupt summer warming, with significant changes in temperature extremes since the mid-1990s. Dr. DONG's team attributes these changes to natural variability and anthropogenic forcings, with reduced aerosol precursor emissions over Europe playing a crucial role.
The study analyzed the macrobenthic assemblages of Southern Bohai Sea over a 60-year period, revealing a shift from K strategy species to R strategy species. The succession process was influenced by environmental changes, including increased seawater salinity and temperature, and human activities such as over-fishing.
A national survey found that awareness of Laudato Si' did not increase concern over climate change, but rather polarized views among Catholics and non-Catholics. Liberals who knew about the encyclical were more concerned about climate change than those who didn't.
Researchers reconstruct climate and oceanographic conditions in the westernmost Mediterranean Sea, revealing hot and dry Medieval Climatic Anomaly and cooler Little Ice Age conditions. Human impact also detected in temperature increase, aridification, and soil erosion.
A new study reveals that climate change can hinder scientific projections of storm tracks, with multiple environmental influences at play. The 'tug of war' between Arctic amplification and tropical warming affects the position of storm tracks, impacting iconic cities worldwide.
A North Carolina State University study found that teachers' beliefs about climate change affect students' perceptions, with 92% of students mirroring their teacher's belief in global warming. However, students diverge from their teachers when it comes to understanding the human causes of climate change.
Storm tracks are crucial for weather and climate in middle-latitude regions like Chicago and New York. Climate change alters the position of these tracks, with clouds playing a key role in this shift. Researchers highlight the need to expand observational efforts and improve computer simulations to better understand storm track changes.
A new study finds human activity has been causing global warming since the early stages of the Industrial Revolution. The research suggests that greenhouse gas levels rose in the atmosphere during the 1800s, leading to rapid and measurable warming in tropical oceans and the Arctic.
Researchers at Stockholm University and the University of Miami found that thin mid-level clouds in the tropics cool the climate by about 20 W m-2, significantly more than previously thought. This study aims to bridge gaps in knowledge about these challenging-to-study clouds.
A study published by the University of Oxford found that man-made climate change was responsible for hundreds of deaths in two European cities during a 2003 heatwave. The research used computer simulations and health impact assessments to estimate the number of premature deaths attributed to climate change.
A recent climate study found a significant correlation between human activity and enhanced vegetation growth in the Northern Hemisphere. The research, led by Oak Ridge National Laboratory, used advanced statistical methods to detect the human 'fingerprint' behind this phenomenon.
A study by Karlsruhe Institute of Technology and Swedish-US partners found that demographic development has a significant impact on wildfires, with population growth reducing fire frequency. However, this does not mean the risk of fires will decrease, as growing population density in fire-susceptible regions increases the risk.
A new study examines human behavior's impact on wildfires in California, finding that it explains as much about their frequency and location as climate change. The researchers recommend considering both climate change and human variables for future models to accurately predict wildfire risks.
The study found that Acropora corals, responsible for modern reef growth, are experiencing sharp declines in abundance worldwide. However, by managing local anthropogenic stressors such as pollution and over-fishing, it is possible to increase their resistance to climate change and preserve these corals.
Recent summer temperatures in Europe have exceeded those of the past two millennia, according to a new study that used tree-ring information and historical evidence. The research suggests that past natural changes in summer temperature are larger than previously thought, potentially leading to more extreme events.
A new study reveals that human activities are the main cause of hypoxia in freshwaters worldwide, with 71 lakes showing significant changes since the mid-19th century. Aquatic rehabilitation programs have failed to restore lake ecosystems to their original well-oxygenated state.
Researchers at the Alfred Wegener Institute found that a 15-year observation series reveals how sensitive arctic marine ecosystems are to change. The study indicates that even a short-term influx of warm water can fundamentally impact local symbiotic communities, leading to changes in deep-sea life.
A recent study from the University of Eastern Finland found that man-made snow drifts improved breeding success in seals during winters with poor snow conditions. The study developed novel methods for monitoring and conserving the critically endangered Saimaa ringed seal subspecies.
The study found that pteropods, a tiny sea snail, will struggle to form their shells due to low carbonate ion concentration. The duration of undersaturation events will increase abruptly, posing an uncertain adaptation for vulnerable marine organisms.
A Purdue University-led survey of nearly 700 scientists from non-climate disciplines found that an overwhelming majority believe in anthropogenic climate change and are highly certain of their beliefs. The study suggests that cultural values, political ideologies, and personal identity influence scientists' views on climate change.
Researchers investigated ocean temperature changes over centuries using climate models and fossil records. They found that volcanic eruptions caused progressive cooling until the Industrial Revolution, which marked a shift towards global warming. Understanding past climate patterns can provide insights into future climate changes.