Articles tagged with Climate Change
Researchers found evidence of carbonaceous aerosols transported from Asia, deposited in the Arctic over 450 years. They also discovered increased dust levels during warmer periods with strong Arctic Oscillation.
Researchers found that the return period for a storm producing a surge of 2.81 meters or greater has been reduced from 3,000 years to just 130 years since human-caused climate change began. This increase in storm surges is attributed to rising sea levels and more intense tropical storms.
Researchers found a dramatic increase in major storm occurrence along the New York City and New Jersey coast over the last 1,000 years. The combined effects of sea-level rise and changing hurricane characteristics have raised the likelihood of devastating flooding.
Researchers link Chinese-made goods to higher CO2 emissions due to antiquated manufacturing processes and coal reliance. Developed countries can alleviate carbon pollution by improving manufacturing in China's most polluting regions.
Researchers at the University of Rochester and Chinese institutions investigate if CO2 decrease caused Earth to cool 3 million years ago. They test hypothesis that iron-rich dust from Asian deserts fertilized North Pacific Ocean algae, reducing atmospheric CO2.
Research reveals that tiny plankton can store large amounts of CO2, potentially doubling estimates of ocean carbon absorption. The copepod lipid pump mechanism is a significant discovery, as it was not previously considered in climate models.
Research reveals that fluctuating sea levels and global cooling led to a significant decline in the number of crocodylian species over millions of years. The study found that changes in climate had a major impact on these creatures, with many surviving only in warmer parts of the world.
CAGE has deployed two methane observatories on the ocean floor in the Arctic Ocean, monitoring methane and CO2 releases, ocean acidification, and circulation. The observatories will collect crucial data for a full year, helping to understand processes related to climate change.
New research shows clear signs of global warming appeared in the tropics as early as the 1960s, but in parts of Australia and Africa as far back as the 1940s. The study's findings closely match observational datasets used by the IPCC, indicating a growing trend in increasing temperatures.
The symposium aims to address the role of urban soils in storing carbon and mitigate climate change. Experts propose various management options such as biodiversity enhancement and sustainable land use practices to increase soil carbon storage.
A study by Stanford scientists has found that the supposed 'global warming hiatus' never occurred, due to flawed statistical methods. The researchers developed a new statistical framework to re-examine temperature data, taking into account temporal and spatial dependencies.
A sweeping study by Kansas State University reveals a decline in crop diversity across the US over the past 34 years, with significant regional variations. The research highlights the potential consequences of this trend on agroecosystem function and food system sustainability.
A Dartmouth College study found that Arctic mosquitoes are thriving under climate change, emerging earlier and growing faster due to warmer temperatures. This boosts their population, threatening caribou and other wildlife, with a predicted 53% increase in survival probability by 2°C warming scenario.
A new study by Aarhus University researchers found that plant communities on the Chimborazo volcano in Ecuador have shifted upwards by more than 500 meters over the last two centuries. This dramatic shift is attributed to climate change and human-induced land cultivation, which has reduced precipitation and glacier coverage.
Scientists studied how a more acidic ocean affects the protective shell of the mermaid's wineglass algae. They found that in high carbon dioxide conditions, skeletons contained 32% less calcium carbonate and were 40% less stiff and droopier. This could make them more susceptible to damage from ocean currents and grazing by marine animals.
A study by MIT economist Christopher Knittel reveals an essential mechanism underlying the politics of climate change. The research shows that certain climate policies, like transportation fuel subsidies, contain asymmetries that benefit a smaller group at the expense of most people.
Researchers at the University of California, Berkeley suggest that promoting clean energy can help build key political coalitions. By providing benefits through green industrial policies, such as subsidies and tax rebates, policymakers can create stronger coalitions for decarbonizing energy systems.
Targeted green industry policies offer concrete benefits to firms and households, spurring decarbonization trends. Effective sequence of policy implementation is key, with broad carbon taxes following initial targeted measures.
Researchers found that phytoplankton organic waste can stimulate cloud droplets to freeze into ice particles, affecting global climate and influencing temperature. This discovery helps improve weather models and climate predictions.
A team of international researchers has developed recommendations to preserve the local environment in China's Xinjiang region, which produces ten percent of global cotton production. Sustainable land use practices and reforestation are key to reducing soil salination and preserving groundwater supplies.
Scientists analyzed UK fisheries survey logbooks from the 1930s to 1950s, finding that cod diet and populations were affected by environmental conditions. The study contributes to understanding climate change and variability, providing insights into fish stocks and the environment over the past century.
A new study from the University of Texas at Dallas reveals that US investors prefer coal over renewable energy, reflecting a different environmental perspective. In contrast, European investors prioritize renewable energy stocks, driven by environmentally conscious attitudes.
A UT Arlington biologist is conducting a comprehensive study of zooplankton in over 20 lakes in Alaska and Wisconsin to better understand the relationship between ecological changes and evolutionary responses. The research aims to predict how organisms adapt to natural and human-induced environmental shifts.
Researchers suggest increased low clouds in the Arctic due to rising temperatures could slow the formation of frigid air masses, explaining past and future continental warming. This mechanism may have allowed crocodiles to thrive in Wyoming during the Cretaceous and Eocene periods.
A new study reveals that climate change will irreversibly force key ocean bacteria into high-speed reproduction, producing 50% more nitrogen. This accelerated growth can't be reversed and may lead to catastrophic die-offs of the microorganism and dependent species.
A new study by CU Denver reveals that smaller cities in the developing world are often unprepared for disasters, lacking basic infrastructure and redundant systems. Climate change is expected to exacerbate these threats, particularly in mountainous regions such as India's Darjeeling District.
Researchers at Princeton and MIT have used computer models to predict the potential storm surge waters for three cities: Tampa, Cairns, and Dubai. The study found that powerful storms could generate dangerous storm surges in all three cities, with odds of 1 in 10,000 in an average year.
A new method reconciles observational proxy and model evidence, demonstrating that the Tampora and Samalas eruptions generated an average drop in temperature in the Northern Hemisphere fluctuating between 0.8 and 1.3°C during the summer of 1258 and 1816. This cooling did not last for more than three years at a hemispheric scale.
A Columbia Engineering team has developed a new approach to model the Amazon seasonal cycle, correcting inaccuracies in general circulation models. The high-resolution atmospheric model resolves clouds and convection, providing a more accurate understanding of water and carbon cycles.
A UCI study finds a significant increase in concurrent droughts and heat waves, posing a more severe threat due to their combined impact. Researchers attribute the rise to rising global temperatures, which raise the probability of extreme weather events.
A new study by TUM scientists links climate change to declining crop yields and humus stocks in arable soils. The researchers found that the stagnation in yields coincides with a decline in organic matter input into the soil, leading to a depletion of humus.
Researchers in Spain are developing hypoallergenic parks to combat seasonal allergies, which affect millions worldwide. The study found that common trees in green spaces can cause unhealthy air quality.
New research suggests that targeted punishments could provide a path to international climate change cooperation. By devising rules for small groups of 'defectors' to focus pressure, cooperation can build up gradually, ultimately leading to collective action against climate change.
A new study has found that the rise in carbon dioxide was the primary driver of the global retreat of glaciers during the last Ice Age. The research, which analyzed over 1,000 glacial boulders, eliminates regional factors as the main cause of glacier melting and confirms the leading role of greenhouse gases in shaping Earth's climate.
A proposed article in Environmental Justice advocates for basic energy rights for low-income populations, addressing energy insecurity and environmental health risks. The author compares two US communities: Dimock, PA, and Detroit, MI, highlighting the disproportionate burden vulnerable communities bear in energy supply and demand.
Research suggests that restoring native grasslands on the Tibetan Plateau could cool the air through increased evapotranspiration, weakening global warming. The study's findings indicate a positive impact on both regional and global climates.
A special issue of Science explores the impact of human-induced environmental changes on forests worldwide. The reviews highlight pressing issues such as forest fires, drought, and extinction, emphasizing the need for sustainable management practices, genetic engineering, and collaborative research.
New research has substantially reduced China's estimated carbon emissions from the past decade, suggesting that international agencies had overestimated its cumulative emissions by as much as 2.9 gigatons. The revised estimates were made possible by a more accurate understanding of fuel quality and emission factors.
A study published in Nature Geoscience found that frequent volcanic eruptions were the likely cause of a 1800-year-long cooling trend in the surface layer of the Earth's oceans. The researchers used 57 previously published marine surface temperature reconstructions and climate models to confirm this finding.
Coral reef scientists warn that even with a successful Paris climate conference, ocean warming and acidification will continue beyond the end of this century, potentially leading to the extinction of coral reefs. Experts call for more aggressive emissions reduction plans to stabilize CO2 at 350ppm or lower to give reefs a chance.
Researchers argue that internal natural variability can overwhelm background warming, making temperature plateauing rates appear significant. The Pacific Decadal Oscillation and other factors contribute to these variations, which must be considered when developing climate change models.
Scientists confirm human activity, not climate change, as main driver of megafauna extinction over the last 80,000 years. The study's findings shed light on a long-standing debate and suggest that early humans were responsible for the demise of iconic species such as the woolly mammoth and sabretooth tiger.
A new study by an international team of scientists found that competition from cats drove the extinction of many ancient dog species. The researchers analyzed over 2000 fossils and discovered that felids had a deadly impact on the diversity of the dog family, contributing to the demise of up to 40 species.
Researchers used natural CO2 underwater seeps to study ecosystems in high-CO2 levels and adjacent ecosystems with present-day levels of CO2. The study found that acidification affects fish behavior, but some species thrive in acidified waters, while others decline or shift habitats.
Researchers at The University of Texas at Austin pioneered a new technique to track subglacial discharge in tidewater glaciers. This method is essential for understanding how glaciers are melting and changing due to climate shifts.
A study from University of California, Davis, found that forest disturbances like wildfire and thinning are replacing understory plants with those from more southern areas, such as Mexico and Southern California. This shift is driven by climate change, leading to a potential increase in forest diversity.
The University of Sydney has created a digital map of the seafloor's geology, covering 70% of the Earth's surface, after 40 years without update. The map provides key findings on diatom accumulations and their relationship with ocean carbon cycle.
Scientists analyzed a 14.7 million-year-old eruption in the Columbia River basalt formation, finding that it produced massive amounts of lava and gas that could have reached the stratosphere. This hypothetical scenario indicates that ancient flood volcanoes may have played a significant role in altering global climate patterns.
A new correction of the sunspot number suggests that solar activity has remained relatively stable since the 1700s, contradicting previous claims of a Modern Grand Maximum. This finding challenges existing climate evolution models and could reveal more about the role of the Sun in climate change over longer timescales.
Researchers at Ben-Gurion University are developing a comprehensive Zero Plus system to reduce community energy usage and achieve Net Zero Energy (NZE) status. The system aims to minimize energy costs by optimizing energy generation and management in buildings, with the goal of achieving an average reduction of 0-20 kWh/m2 per year.
Australian scientists predict that many tropical mountain plant species will be unable to survive their current locations by 2080 due to high-altitude climate changes. The Wet Tropics World Heritage Area in Queensland is at risk of losing its endemic plants.
The US is set to harden its shoreline by 22,842 km if current trends continue, with most new development focusing on soft marshy estuaries and lagoons. Coastal wetlands provide essential ecosystem services, including filtering pollution and buffering against storms.
A new study projects that Manhattan's climate will resemble Oklahoma City's by the end of this century due to climate change. The study found that heating and cooling usage will decrease in Northern states and increase in Southern states as temperatures warm up.
A new study shows that carbon dioxide removal from the atmosphere will not compensate for soaring emissions, even if atmospheric CO2 concentration is restored to pre-industrial levels. This would lead to ocean acidification and threatening marine life forms.
A new study warns that continued carbon dioxide emission trends would leave a lasting impact on the deep ocean, with acidification and warming posing significant threats to marine life. Removing CO2 from the atmosphere through Carbon Dioxide Removal (CDR) strategies may not be effective in reversing these effects.
The study reveals that glaciers worldwide are melting at an unprecedented rate, losing half a meter to one meter of ice thickness every year. This is two to three times more than the average for the 20th century, with some glaciers in Norway having retreated by several kilometers from their maximum extents.
The Galápagos penguin population has doubled over the past 30 years due to changes in wind currents and ocean temperatures. This expansion of the cold pool, where sea surface temperatures are below 22 degrees Celsius, has bolstered algae and fish numbers, supporting the penguin population.
A new study from the University of East Anglia recommends that China prioritize non-coal fuels like nuclear power and natural gas to improve electricity supply security while reducing carbon emissions. The country's largest coal importer, China needs to reduce its dependence on coal to achieve long-term energy security.
Researchers found reduced tree stem growth after severe drought, contrasting with climate models that assume quick recovery. This study suggests reevaluation of climate-vegetation models to accurately capture drought impacts on the global carbon cycle.
New research confirms Washington D.C. is sinking rapidly, with a projected six-inch drop by 2100, exacerbating flooding and sea-level rise concerns. The study's detailed field data reveal the region's land subsidence is primarily driven by geological processes, not human influence.