Articles tagged with Climate Change
A new study found that climate change is causing humans to visit national parks earlier, with peak attendance shifting four days earlier than 30 years ago. This shift may serve as a bellwether for more severe human adjustments required to cope with climate change.
Researchers reconstructed climate sensitivity over five ice-age cycles using a global suite of records, comparing it with changes in greenhouse gas concentrations and Earth-Sun orbital configuration. The study estimates a 3.1-3.9°C temperature increase for a modern doubling of atmospheric carbon-dioxide concentrations.
PNNL scientists are developing a framework to understand regional climate and economic interactions. They also estimate global on-shore wind energy potential and investigate the uncertainties surrounding it.
New research suggests ancient Meso-American civilizations amplified droughts by clearing rainforests, leading to significant precipitation decline. Ancient dry spells also occurred in the Northeast, with major droughts lasting up to 500 years, hinting at a potential future of severe water shortages.
Global carbon dioxide emissions from fossil fuels have reached a record 10 billion tons, exceeding projections by the Intergovernmental Panel on Climate Change. The increase is largely driven by emerging economies, with China and India contributing significantly to global emissions growth.
A recent study published in Science reveals that the Antarctic and Arctic ice sheets experienced simultaneous melting 19,000 years ago. This finding suggests that Antarctica was not as climatically isolated as previously thought, with the two hemispheres reacting more closely to climate change.
Scientists at Stanford University subject rocks to hellish conditions to combat global warming by studying the storage of carbon dioxide in geologic formations. They have obtained critical data about the large-scale underground storage of carbon dioxide, including reduced leakage risk and increased permeability.
The use of Creative Commons 'non-commercial' licenses is a major barrier to reusing biodiversity information, hindering conservation and climate change research. The ambiguity between 'non-for-profit' and 'non-commercial' restrictions imposes significant risks on organizations, limiting the sharing of valuable information.
A recent study found that atmospheric carbon dioxide levels plummeted by 40% before and during the formation of Antarctica's ice sheet 34 million years ago. This confirms the power of CO2 to dramatically alter global climate, with significant falls in the greenhouse gas resulting in global cooling.
A recent study found that a drop in carbon dioxide led to the Antarctic ice sheet's formation, with levels below 600 parts per million triggering cooling and ice sheet initiation. The team pinpointed this threshold in ancient algae samples from deep-sea cores, suggesting carbon dioxide's importance in past and future climate.
Scientists have discovered tranquillityite in Australia's Eel Creek Formation, a mineral previously believed to originate on the Moon. Meanwhile, researchers in Hong Kong present the first three-dimensional seismic velocity model of the region, providing insights into crustal structures and earthquake activity.
Scientists at University of New Hampshire will provide sea level rise data for next IPCC report. The data, currently poorly understood, will be used to estimate the contribution of mountain glaciers to sea level rise.
Experts from leading science organisations have released a blueprint for urgent action to address the global challenge of feeding the world in the face of climate change. The report recommends climate-resilient agricultural production, efficient resource use, and low-waste supply chains.
A three-year project led by University of Bangor aims to assess how climate change affects the movement of muddy sediments in rivers, estuaries, and seas. The study focuses on the interaction between cohesive muds and sandy sediments, which plays a crucial role in understanding coastal erosion and deposition.
The Visible Infrared Imager Radiometer Suite (VIIRS) onboard NASA's NPP satellite has acquired its first measurements, capturing high-resolution imagery of Eastern North America. The data will be used to observe the Earth's surface, including fires, ice, ocean color, vegetation, clouds, and land and sea surface temperatures.
A recent survey found near unanimous agreement among climate scientists on human-caused global warming, but many Americans believe most scientists disagree. This misperception reduces certainty about global warming and climate policy support. Correcting this misunderstanding is crucial to addressing the issue.
Research suggests that carbon dioxide emissions must decrease to zero within two decades to limit global warming to safe levels. To achieve this, countries need to reduce their emissions by at least three percent per year.
The international community's pledge to provide $100 billion annually in climate change aid is unprecedented and requires careful stewardship. UBC researchers recommend instituting an adaptive regulatory system, employing decentralized third-party auditors, and adopting scientific approaches to evaluate program effectiveness.
A team of researchers determined the mass extinction event that wiped out 95% of marine life and 70% of terrestrial life occurred approximately 252.28 million years ago, lasting less than 200,000 years.
Research finds areas with highest amphibian species richness are most vulnerable to threats. The study suggests multiple drivers of extinction may accelerate population declines over the next decades.
Michael Mann, renowned climatologist, will receive the Hans Oeschger Medal from the European Geosciences Union. The award recognizes his groundbreaking work on Earth's climate system, including the 'hockey stick' chart and advocacy for climate action.
A new climate study found that daily weather variations have become more erratic and extreme, with significant fluctuations in sunshine and rainfall. This increase in variability could alter the distribution of heat and rainfall, affecting ecosystem stability and industries such as agriculture and solar-energy production.
A University of Tennessee microbiologist is working on a biofilter to remove harmful algal toxins from water. The project aims to reduce the risk of toxins passing into water distribution systems and restore safe water resources.
A new study by Dr. Murray Rudd reveals a high level of consensus among conservation scientists about the impending loss of biological diversity. The survey found that 99.5% of responders believed a serious loss was likely or very likely, with tropical coral ecosystems perceived as the most seriously affected.
The ICRISAT-led team has completed the genome sequence of pigeonpea, a legume crop grown by millions of poor farmers worldwide. With this breakthrough, scientists can now identify genes for drought tolerance and improve crop productivity, tackling pests and disease constraints in production.
The world's first standard for geologic storage of carbon dioxide is now available for public review, providing essential guidelines for regulators and industry. The draft standard will be considered based on feedback received during the public review period, which ends on December 27.
A new study using genetic, archeological, and climatic data found that humans and climate fluctuations contributed to the extinction of six large Ice-Age mammals. The research suggests that as the Earth warmed after the last ice age, these species were unable to find alternative habitats, leading to their demise.
A recent study reveals that neither human activity nor climate change alone caused the Ice Age megafauna extinctions. However, the research suggests that a combination of factors, including humans and climate change, contributed to the loss of large mammal species in Eurasia and North America.
The Princeton study suggests that savanna wildfires play a crucial role in maintaining the division between forests and savannas. The researchers found that regular fires prevent trees from establishing and savannas from turning into forest. However, human activities such as climate change, road construction, and fire prevention measur...
Climate change has contributed roughly half to the increase in Mediterranean winter droughts since 1902, with sea surface temperature patterns driving this relationship. The region's dry conditions are expected to worsen, threatening food security and water scarcity.
A new three-year study aims to better understand the Arctic ocean and sea ice system, predicting its future changes and their implications for the UK and globally. The research will investigate how the seasonal removal of sea ice cover affects winds, currents, and ocean temperatures.
A new tool, COSP, has been developed to help scientists better represent clouds in climate models. It allows for a meaningful comparison between model-simulated clouds and corresponding satellite observations, eliminating ambiguities in direct comparisons.
The GeoSymbio application provides a wealth of information on symbiotic zooxanthellae, including genetic identification and taxonomic description of over 400 distinct subclades. This tool accelerates insights into their ecology, biogeography, and evolution in the face of climate change.
The ConocoPhillips Energy Prize has been awarded to Altaeros Energies for their innovative airborne tethered wind turbine technology, which can supply 100 kilowatts of electricity without using fossil fuels. This technology has the potential to revolutionize remote energy needs and reduce greenhouse gas emissions.
NASA has released a series of new satellite data visualizations showing tens of millions of fires detected globally from space. The data helps scientists understand the impact of fire on local, regional and global scales.
Researchers project sea level rise of up to 5.5 meters by 2500 under pessimistic scenario, with accelerated rise over centuries even after emissions stabilization.
A team led by Steven Davis tracked and quantified global carbon dioxide emissions across the supply chain. They found that regulating fossil fuels extracted in major countries like China, US, and Russia could cover 67% of global emissions.
Research finds clustered hurricane activity reduces damage to coral reefs and ecosystems, allowing for recovery time. Clustering of storms also benefits insurance companies by providing time to rebuild profits.
An international team of experts investigates the changing mass of the Antarctic Ice Sheet using satellite observations, GPS data, and climate models. They aim to determine the evolution of the ice sheet's mass over the last 20 years and identify regions of change.
Recent presidential and congressional elections reveal a correlation between climate change policy stances and electoral success. Voters favor candidates taking 'green' positions on climate change, while those expressing skepticism lose support.
Researchers at the Geological Society of America meeting connect extreme weather events over the past decade to climate change. Warmer oceans, fueled by increased carbon dioxide and greenhouse gas releases, contribute to more frequent and intense storms, droughts, and wildfires.
Researchers are exploring why warm places have more species by studying brown food webs and their impact on biodiversity. The four-year project will test mathematical models on trees, small animals, and microbes to predict the effects of global climate change.
The University of Oklahoma will host a regional climate science center, providing expertise and strength to address climate variability and change. The center will link weather and climate projections with operational decisions made by land managers, supporting natural resource management.
A University of Guelph study shows that gray jays relying on cached food for survival must store it in trees with specific characteristics, such as coniferous species. This crucial cache is vital not only for overwinter survival but also successful reproduction in the Canadian boreal forest.
The Koffler Scientific Reserve is launching a four-year project to collect seeds from 34 target species, which will be banked for 5-50 years. Researchers will analyze how these species react to changes in their surroundings, such as climate change and new land-use patterns.
Researchers have uncovered a well-preserved example of a massive landslide triggered by a volcanic eruption on Tenerife. The study provides insights into the long-term effects of such events on hazardous pyroclastic dispersal, with potential implications for tsunami risk assessment and global preparedness.
Physicists are being called on to take action against climate change by reducing their own carbon footprints. By changing behavior at the individual level and carefully planning future experiments, physicists can contribute to a more sustainable energy supply.
The IDS Bulletin report explores how global crises are affecting poor people worldwide, questioning core development ideas. Emerging powers and aid donors' responses to crises are being reevaluated, with the report's findings highlighting the struggle of new ideas to replace established concepts.
A new study from CSIRO Australia has found that Australia's average wind speed is increasing, contrary to recent international studies showing a decrease. The research provides valuable insights into the causes of variations in near-surface wind and long-term wind speed trends over Australia.
Researchers will examine how humans have responded to changes in surrounding forests over multiple centuries, focusing on New Mexico's Jemez Mountains and the intersection of climate change, drought, and forest fires. The team aims to understand how humans can live sustainably within fire-adapted ecosystems.
Researchers found phase synchronization between El Niño-Southern Oscillation and the annual temperature cycle in the eastern equatorial Pacific. This phenomenon indicates that at certain times El Niño and the annual cycle run according to the same beat, while at other times their phases 'slip past' each other.
Research suggests that periods of rapid temperature fluctuation coincided with the appearance of distant human relatives and the spread of stone tools. Genetic modelling techniques revealed a correlation between climatic variability and key events in human evolution.
Research from Cardiff University reveals that invertebrates living on the woodland floor regulate fungal battles, ensuring less competitive species survive. This process maintains soil quality and fertility, supporting native trees and plants.
Researchers have found numerous channels allowing methane to reach the seafloor, and discovered solid hydrate formations that can release gas as the ocean warms. This study aims to improve understanding of methane origins, escape routes, and potential impacts on global climate change.
A new decision-support model developed by scientists can guide allocation of conservation funding to save more species from extinction. The model incorporates both ecological and economic information, prioritizing conservation activities based on a yearly budget.
Dr Nick Graham, a young researcher at James Cook University, has won the Scopus Young Researcher of the Year Award for his work on predicting fish populations in coral reefs. His research uses satellite data to study the architecture of coral reefs from space, providing valuable insights into how degraded reefs can recover.
The 2011 Science in Society Journalism Awards honored Maryn McKenna, Katy Butler, Barbara Moran, and Charles Homans for their critical reporting on MRSA, climate change, nuclear power, and more. The awards celebrate innovative work that considers the social effects of science.
The research aims to determine the impacts of various emission sources on fine particle concentrations in Santiago de Chile. The study reveals that transport is the biggest source of fine particles in the city.
Researchers at UCLA have developed a new algorithm that improves climate forecast accuracy by 16 months, enabling more precise predictions for agriculture and industry, while also helping identify El Niño events
A Texas A&M University professor has published a study suggesting that clouds only amplify climate change, rather than causing it. Decades of data support the mainstream view that human activity is the primary driver of warming.