Articles tagged with Climate Change
A recent study published in Communications Earth & Environment found that stable oxygen levels in the ocean, rather than high oxygen levels alone, triggered the greatest increase in animal species in Earth's history. This discovery may help scientists preserve marine ecosystems and understand how to control ocean deoxygenation.
A new study finds that climate change may decrease the percentage of blue lakes worldwide, leading to shifts in lake water color and ecosystem health. The research uses satellite images to determine a global inventory of lake colors, finding that green-brown lakes are more widespread than previously thought.
Researchers applied a new integrated model linking surface water to groundwater to estimate water resources at high spatial resolution. The study found that irrigation increases atmospheric water loss but reduces groundwater support, especially during dry seasons.
Researchers found that elevated CO2 levels stimulate tree growth, resulting in longer and more extensive root systems. This adaptation helps trees absorb nutrients from the soil, providing limited protection against climate change. The study provides insights into how forests respond to increased carbon dioxide levels.
A team of international scientists found that many densely populated coastal cities worldwide are at risk from sea level rise due to land subsidence. The study used satellite images to estimate the rate of land sinking in 48 cities, with median speeds ranging from 16.2mm/year to 43mm/year.
Researchers found that models using soil moisture explain 30-120% more year-to-year variation in yield than those relying on rainfall, revealing a critical link between temperature and water supply for crops. Extreme heat is less damaging to crop yields than previously estimated, while drought and flooding sensitivity increases.
The Penn State-led CARAT project will help dairy farmers in Pennsylvania develop and implement climate-smart practices, generating value for dairy products along the supply chain. The project aims to establish real data on the value of climate-smart practices, enabling producers to enter into carbon markets and be fairly compensated.
A new record of past Indian monsoon drought history has been developed using oxygen isotopes in stalagmites, correlating with historical accounts of severe droughts and societal changes. Protracted droughts tend to occur in clusters within decades-long intervals of weaker monsoon rainfall.
The aviation industry faces radical solutions to address its growing impact on climate change, with cleaner fuels and carbon offsetting deemed inadequate. The industry needs to invest in new technologies, such as hydrogen and electricity-powered planes, to reduce emissions and mitigate contrails' warming effects.
A recent study by Dr Joseph Michalski from HKU suggests that the number of ancient Martian lakes may have been significantly overestimated. The analysis of satellite data reveals evidence for smaller lakes on Mars, which could contain critical information about past climates.
University of Rochester researchers have quantified the energy of ocean currents larger than 1,000 kilometers using a coarse-graining technique. The most energetic current is the Antarctic Circumpolar Current, spanning 9,000 kilometers.
A new study examines the impact of sea level rise on building foundations and proposes a method for inspection and repair to lower costs. The researchers estimate that the annual repair cost for foundations in Mobile, Alabama, could total $90 million by 2100.
The Texas Climate-Smart Initiative aims to expand climate-smart commodity markets and leverage greenhouse gas benefits. Project partners will provide technical and financial assistance to producers to implement climate-smart production practices.
Researchers from Hiroshima University developed a comprehensive framework to improve carbon-cutting policies in China. The model takes into account various factors, including behavior, land use planning and energy consumption, to provide a fuller picture for policymakers.
The Arabian Gulf's seasonal near-bottom hypoxic zone has expanded by over 50% since the 1980s, persisting for several months each year. This decline in oxygen concentrations threatens regional fisheries and marine biodiversity.
Researchers found a remarkable record of how the East Antarctic Ice Sheet responded to changes in climate over 100,000 years, with cycles of melting and freezing driven by Southern Ocean temperatures. The study provides new insights into the sensitivity of the ice sheet to small, short-term climate fluctuations.
A study on common ragweed found that its gene adaptation is key to its successful invasion of Europe. The plant's ability to resist local pathogens and hybridize with other species has allowed it to outcompete native species.
A recent study in Peru revealed a 50% decline in arthropod biomass following short periods of drought and increased precipitation. Tropical insects are sensitive to both extreme weather events, with rainfall patterns being a key factor in their decline.
A new study identifies areas in Antarctica's East region that could significantly contribute to sea-level rise if they undergo basal thaw. The researchers used numerical ice sheet models to simulate temperature changes at the base of the ice sheet, revealing regions such as Enderby-Kemp and George V Land as most susceptible to thawing.
Researchers identified seven key knowledge gaps to help cities and businesses operate within Earth system limits, including developing common procedures and science-based targets. The report highlights the need for alignment of targets across domains to avoid tipping points and ensure a social justice dimension.
Researchers found that insects have a weak ability to acclimate to high temperatures, with only small compensations of 10-15°C. Juvenile insects show greater resilience, but this may be limited to specific critical periods. The study highlights the need for further research on insect responses to climate change.
A new study suggests that massive volcanic eruptions were the primary cause of mass extinctions, including the one that wiped out the dinosaurs. The research found a strong temporal connection between flood basalt eruptions and significant climatic events.
Realizing net-zero food systems necessitates the adoption of new technologies and diet shifts to reduce global greenhouse gas emissions. The goal is to achieve a net-zero emission global food system by 2050, with a roadmap outlining milestones for implementation by 2030 and 2040.
A new study by University of California, Berkeley researchers found that participating in Mission Innovation and intensifying technology competition from China are the strongest drivers of funding for clean energy RD&D. Despite growing public investment, the pace of transformation is not fast enough to facilitate rapid decarbonization.
A new study by Newcastle University found that individual corals have varying levels of heat tolerance, with some able to withstand double the heat stress required to induce bleaching and mortality. This variability suggests capacity for adaptation if some of the toughest corals can survive marine heatwaves.
People with diabetes face higher risk of hospitalization during extreme heat events due to dehydration and blood glucose imbalance. Research reveals a link between extreme heat and emergency hospitalizations for hypo- and hyperglycemia-related conditions.
Researchers at Washington State University found that eco-friendly hotel certifications do not lead to financial benefits for hotels. However, displaying comparable pricing information and informing consumers about green certification can boost future sales. The study suggests that the tourism industry needs sustainable practices to re...
Scientists have discovered a link between air pollution and lung cancer in people who have never smoked. Exposure to particulate matter (PM2.5) has been shown to promote cancerous changes in airway cells with EGFR and KRAS gene mutations, driving them towards a cancer stem cell-like state.
Researchers found climate models are less accurate in projecting how tropical cyclones will affect individual coral reefs, highlighting the importance of targeted conservation efforts. The study urges caution when using climate models to identify vulnerable reef communities to storm damage.
Researchers from Hiroshima University have identified two types of genes that are upregulated in both rice and thale cress when exposed to oxygen deprivation. The study suggests distinct molecular mechanisms under hypoxia in plants and animals, with potential applications for creating flood-tolerant crops.
Late-breaking results at ESMO Congress 2022 reveal a strong association between air pollution and non-small cell lung cancer, with exposure to particulate matter linked to increased risk. The research underscores the need for environmental sustainability in oncology, particularly in cancer prevention and early detection.
Scientists have discovered a slowing of continental plate movement was the critical event that enabled magma to rise to the surface and deliver devastating knock-on impacts. This fundamental process controlled the evolution of climate and life on Earth throughout its history.
Researchers warn that climate change will increase uncertainty in international law governing maritime zones, affecting small island states. Technologies like GPS and satellite bathmetry may help solidify claims, but more data is needed to accurately delineate existing boundaries.
Researchers found tropical soil microbes decline in diversity and increase CO2 emissions with simulated global warming. The findings threaten rainforest ecosystems and carbon storage, emphasizing the urgency for conservation.
Researchers at University of Cincinnati found that emphasizing cost savings over global warming increases support for renewable energy sources. The study tested four messaging approaches and found durable bipartisan effects in favor of cost savings.
Researchers analyzed eight ice caves in Tyrol, Styria, Upper Austria, and Carinthia, finding a decline in ice mass over the past 2000 years due to human-induced climate change. The study mirrors the evolution of glaciers during the Late Holocene period, with significant consequences for these underground ice formations.
A new analysis reveals that the world is already at risk of passing five dangerous climate tipping points, even at current levels of global heating. The study synthesizes evidence from over 200 papers and identifies 16 major biophysical systems with potential to cross tipping points.
The Southern Ocean dominates ocean heat uptake due to its unique wind-driven circulation. Rising temperatures could lead to devastating impacts on the food web and ice shelves around Antarctica, with urgent calls for reduced greenhouse gas emissions.
A new study has found that extreme temperatures are fueling online hate speech, with hate tweets increasing by up to 12% for colder temperatures and 22% for hotter temperatures. The researchers analyzed over 4 billion tweets from the US between 2014 and 2020, finding a 'feel-good window' of 15-18°C where hate tweets were at their lowest.
Scientists at Hokkaido University have quantified glacier mass loss on Kamchatka Peninsula, revealing a total ice loss of 4.9 billion tons between 2000 and 2016. Rising temperatures are driving this change, which contributes to global sea level rise.
Participation in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) is associated with improved birth outcomes, including lower infant mortality. The review also found that WIC participants are more likely to receive child preventative services, such as vaccines.
A new study from North Carolina State University shows that soil temperature can be used to predict the spread of the corn earworm, an important pest affecting various crop species. The research reveals three geographic zones where the pest can overwinter, and models suggest that these zones will shift northward due to climate change.
A new study suggests that prediction markets could improve climate risk forecasts by incentivizing experts to share information. The markets would offer a level playing field for diverse expertise and provide a structured way to distribute research funding, promoting effective altruism.
The TU Wien team has created a catalyst that can convert CO2 and methane into synthesis gas without the formation of carbon nanotubes. This approach, called dry reforming, has the potential to convert climate-damaging greenhouse gases into valuable products.
New polymer-based membranes developed at KAUST enable greener separation of simple to complex hydrocarbon mixtures, reducing energy consumption and CO2 emissions in crude oil refineries. The membranes' stability and selectivity can be tuned by thermal crosslinking, allowing for higher purity components and removal of byproducts.
University of South Florida researchers found that mangroves have overtaken 83% of oyster reefs in Tampa Bay, leading to a decline in ecosystem function and habitat for threatened species. Climate-driven changes are altering subtropical ecosystems, threatening the very foundations of coastal biodiversity.
A team led by Jianxi Gao developed equations to measure and compare distances to tipping points across various mutualistic systems, allowing for the triage of declining ecosystems. This method enables the identification of areas that need intervention most urgently, providing a critical sense of urgency to mobilize resources.
New research from the University of Ottawa finds that climate change is waking bumblebees earlier from winter hibernation, putting the species at risk. The study found that this early emergence timing puts bees out of sync with their food sources, leading to smaller colonies and lower survival rates.
Researchers studied heat movement near North Pole and under Arctic sea ice, providing insights into the mechanisms of Arctic sea ice decline. Their findings suggest that strong winds cause mixing of water where ice and ocean meet, leading to enhanced heat transfer and changes in seawater salinity.
A study found that air and water temperatures are reliable predictors of fish mass mortality events. The researchers predict an approximate six-fold increase in the frequency of fish mortality events by 2100 based on local water temperature projections, and a 34-fold increase based on air temperature projections.
Researchers analyzed annual growth rings from Yamal's subfossil trees to track summer temperature over the past 7,638 years. The findings indicate that current warming is unprecedented during the past seven millennia.
A global report reveals ladybird species are poorly understood due to human activities, and urgent conservation actions are needed. The research emphasizes the importance of protecting habitats, particularly those that provide overwintering sites for ladybirds.
New research shows that up to 50% of residences in Houston's Harris County would not have been flooded by Hurricane Harvey if it weren't for climate change. This equates to about 50,000 fewer homes damaged and billions of dollars saved.
Thirty-eight Chinese cities have reduced their CO2 emissions for at least five years, while 21 cities have cut emissions due to economic decline or population loss. The study recommends individualized emission targets considering cities' resources and development goals.
A new study predicts that record-breaking heat waves will become more frequent in places like North America and Europe by 2100. The research suggests that even if countries meet the Paris Agreement goal of limiting warming to 2°C, dangerous heat stress could double by 2100 in the tropics.
Researchers used satellite imagery and machine learning to pinpoint high-priority areas for deforestation action, reducing the target area by 160,000 km². The study reveals that only 37% of the last three years' deforestation rate was covered by official monitoring in the 11 municipalities.
A recent study published in One Earth explores the potential for utilizing urban tree waste to reduce global warming potential in the United States. The researchers found that adopting eco-friendly uses for urban tree waste could significantly reduce greenhouse gas emissions in U.S. cities.
A recent study led by Eliza Loo found that plant immune receptors and signaling components confer salt tolerance even in plants challenged by non-pathogenic microbes. This suggests that plants can sense and initiate adaptive responses to abiotic stresses upon detecting alterations in cues presented by plant-inhabiting microbes.
Researchers developed a machine learning algorithm that can predict how different driving patterns affect battery performance, improving safety and reliability. The algorithm uses non-invasive probing to provide a holistic view of battery health, suggesting routes and driving patterns that minimize degradation and charging times.
A comprehensive study reveals that nitrogen-fixers are most diverse in arid regions of the US, contrary to expectations. Plants have evolved creative ways to acquire nitrogen, and their diversity increases in these environments due to adaptations such as thicker cuticles.