Articles tagged with Climate Change Effects
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A global study found that carbon dioxide levels have increased tree photosynthesis efficiency by 40% between 1901 and 2015. The increase is primarily driven by the rise in atmospheric CO2, with additional analysis suggesting enhanced photosynthesis as a key factor.
Researchers found that day-to-day temperature variability reduces economic growth by an average of 5 percentage-points. Economies in low-income regions are more strongly affected, while those with higher incomes are better prepared due to familiarity and resilience.
Researchers at Michigan State University and the University of Hawaii have discovered chemical signatures in corals that indicate resistance to bleaching. The study found that resistant corals host algae with saturated lipids, which differ from those found in susceptible corals with more unsaturated lipids.
A Rutgers-led study has discovered the natural mineral hematite is responsible for the red color in New Jersey rocks and American Southwest formations. The research reveals that hematite concentrations track 14.5 million years of Late Triassic monsoonal rainfall, providing valuable insights into ancient climate change.
Businesses are increasingly required to assess their vulnerability to climate change, but complex climate models pose a challenge for risk assessment and decision-making. A paradigm shift is needed to elevate climate modeling to operational weather forecasting level, providing tangible value to businesses.
A new study found that elephants are crop-raiding closer to protected areas in Kenya, more frequently, but causing less damage. This trend is linked to climate change and land-use changes, reducing support for conservation in affected communities.
A $900,000 grant will fund a project to explore kelp aquaculture's impact on ocean acidity and carbon sequestration. The study aims to create a tool to restore ocean health and productivity. Kelp can absorb high levels of CO2, creating temporary 'halo' areas with improved water conditions for other sea life.
Research led by NCAR found that COVID-19 lockdowns caused a slight warming effect on the planet, with temperatures rising by 0.2-0.5 degrees Fahrenheit in some regions. The study highlights the complex influence of aerosol emissions on climate, which can either cool or warm the planet depending on the type and amount.
Increased snow depth in northeastern China led to a continued warming trend in soil temperatures, contradicting observed surface air temperature cooling trends. This finding suggests the importance of snow cover in regulating soil temperatures and its implications for agriculture during periods of reduced global warming.
New research suggests that aerosol particles may not have as cooling effect on the climate as previously thought. Cloud researcher Franziska Glassmeier and her team created an extensive data set of cloud simulations to better understand this effect, which they found to be overestimated by traditional ship-track data.
Global tropical cyclone activity has been drifting closer to land over the past four decades, according to researchers Shuai Wang and Ralf Toumi. The distance between storms and land has decreased by roughly 30 kilometers per decade, increasing the risk of coastal populations.
A new study found that lobsters' genes respond strongly to ocean acidification and temperature changes, potentially impacting their growth and survival. The research suggests that lobsters may be more vulnerable to the effects of climate change than previously believed.
A new analysis suggests that north-south differences in ticks' host choice, density, and host-seeking behaviors contribute to Lyme disease's prevalence. Southern ticks tend to select lizards as hosts, reducing the spread of Lyme disease-causing bacteria.
Reducing short-lived climate-forcing pollutants (SLCPs) can mitigate climate change, human health issues, and food insecurity by slowing down near-term climate warming and improving crop yields.
Researchers found climate change was behind the decline of Roman settlements in Egypt's Faiyum region, which relied heavily on irrigation. The study linked a volcanic eruption and reduced Nile rainfall to the environmental changes that led to mass migration.
Cold-water coral reefs in the Western Mediterranean have been growing almost continuously for 400,000 years, with major climate swings controlling their development. The study reveals that intense monsoon events also had a detrimental impact on these reefs.
A new study led by Universität Bayreuth researchers found that future climate-related species extinction could be less severe than predictions based only on current global warming trends. The research team used palaeobiological and climate science models to investigate how long-term temperature trends and short-term changes affect spec...
A study published in Nature Climate Change finds that climate change will alter the position of the Earth's tropical rain belt, with a northward shift expected in the Eastern Hemisphere and a southward shift in the Western Hemisphere. This shift may lead to increased drought stress in some regions and intensified flooding in others.
A new study reveals that rare Arctic insect populations are declining, while more common species are thriving due to climatic changes. Climate-driven shifts in growing seasons and permafrost thawing may be key factors contributing to these trends.
Research by University of Pennsylvania biologists Daniel Janzen and Winnie Hallwachs found that climate change has taken a toll on insects in the tropics. Insect biomass and species richness have been decomposing since the mid-1970s, with dramatic drops in moth numbers and species diversity.
A global study of 107,000 children found that higher temperatures are an equal or greater contributor to child malnutrition and low quality diets than poverty, sanitation, and education. Climate change is also associated with increased diet diversity in some regions, but this effect depends on the intensity and distribution of rainfall.
A University of Helsinki study reveals how micro-climate shapes insect communities, herbivory rates, and parasitism in the North. Climate change dramatically reshapes northern ecosystems.
A recent study on octopus rubescens found a significant adaptability to short-term exposure to acidic water, with metabolic rates returning to normal after 1 week. Long-term effects were less pronounced, with reduced oxygen circulation and function in low-acidity conditions.
A study led by Penn State researchers found that climate change poses a significant threat to wild bee communities due to rising temperatures and precipitation patterns. The team's analysis of 14-year data sets revealed that temperature and precipitation were the most critical factors influencing wild bee abundance and species diversity.
A new study found that as ocean temperatures rise, baby sharks are born smaller, exhausted, and undernourished, facing difficult environments for survival. The research suggests the future of these species will be threatened by warming waters.
Researchers identify human societal tipping points to rapidly cut carbon emissions, citing examples of road transport and power generation transitions. Small coalitions of countries could trigger upward-scaling cascades to achieve more, say experts.
A University of Bonn study finds that climate change caused the sudden disappearance of mangroves on Oman's coastlines 6,000 years ago. The researchers suggest that a shift in the Intertropical Convergence Zone led to extreme stress on mangrove ecosystems due to increased salinization and drought.
Researchers studied a 40-year-old bunchgrass prairie in Montana and found that climate change is altering the ecosystem. Annual aboveground primary production increased by 110%, but plant composition changed with a 108% increase in invasive species, while dicot non-grass plants decreased by 65%.
Scientists found that 86% of land ecosystems globally are becoming progressively less efficient at absorbing CO2 as atmospheric levels increase. This decline, known as the CO2 fertilization effect, is caused by limitations in water and nutrient availability, potentially weakening plants' ability to mitigate climate change.
Researchers recommend integrating modelling tools and empirical data to gain a comprehensive understanding of systemic risks. Effective governance requires interdisciplinary cooperation, close monitoring systems, and public stakeholder participation to ensure adaptable and inclusive management of these complex risks.
A study found that herbivorous insects from lower elevations can alter alpine plant communities when introduced to higher elevations, leading to changes in biomass structure and composition. This disruption can favor the growth of small-stature plant species.
Developing nations can keep global warming to 0.3 degrees Celsius with careful planning, according to a new study. Prioritizing fossil fuel-burning infrastructure for economic development risks long-term dependence on fossil fuels.
A new study published in Proceedings of the National Academy of Sciences suggests that climate change, not Genghis Khan, led to the decline of Central Asia's medieval river civilizations. The research found that decreasing river flow due to drought was equally important for the abandonment of these city-states as the Mongol invasion.
A study challenges the notion that Mongol invasions led to the demise of medieval riverine civilizations in Central Asia. Decreasing river flow was equally important for their decline as climate change and abandonment of irrigation systems were.
The carbon dioxide fertilization effect has declined globally since 1982, impacting climate change projections. This decline is linked to changes in nutrient concentrations and soil water availability.
A recent study by UFZ researchers highlights the importance of both crop diversity and temporal production patterns in ensuring food security. The analysis reveals that countries with high production stability and asynchrony, such as India and China, are better equipped to mitigate the impact of global market uncertainties.
Researchers discovered that some corals can survive prolonged heatwaves and recover their food source, providing a glimmer of hope for coral reef survival. The study's findings suggest that protection from local stressors may help corals recover, offering an innovative strategy for conservationists to support coral survival.
A recent study analyzing daily temperatures and mortality in Turin, Italy, found that women with low educational levels are most at risk of heat-related mortality. The research also reveals that individuals living alone, regardless of gender, are more susceptible to heat stress than those who share a home.
Several post-2020 biodiversity targets are at risk due to climate change, even if habitat exploitation is removed; flexible approaches could help mitigate effects on habitats and species. Climate change imperils international organizations' biodiversity goals, necessitating dynamic responses.
A recent study by the CMCC Foundation suggests that Australia could become a major hub for hazelnut production due to its favorable climate. Climate change is expected to increase hazelnut yields in southeastern Australia, with potential increases of 18-52% projected between 2020 and 2039.
A new study warns that the Greenland ice sheet will experience irreversible melting if global warming exceeds 2°C, leading to significant sea-level rise and permanent changes. The ice sheet's decline could be reversed with actions to counteract global warming before it's too late.
A new study by Martin Luther University Halle-Wittenberg reveals that Bavarian groundwater has warmed considerably over the past few decades. The findings show that groundwater temperatures at depths of 20 metres are almost one degree warmer on average than in the 1990s, correlating with a 1.05 degrees Celsius rise in air temperature.
Researchers found unprecedented magnitude of summer heatwaves and droughts in inner East Asia, tightly coupled by anthropogenic climate change. Tree-ring data suggests abrupt shift to hotter and drier climate over the past two decades.
A study found that nearly half of the global population lacks knowledge about climate change's effect on infectious diseases. The survey revealed marked differences in awareness among nationality and educational background. Knowledge of climate change is unrelated to educational level, indicating a need for increased public awareness.
A comprehensive expedition reveals decades of glacier mass changes, accelerating ice loss and meltwater predictions. Climate change also increases oxygen availability on the mountain, posing a new challenge for human climbers.
Research led by KAUST scientists Evgeniya Predybaylo and Georgiy Stenchikov found that volcanic eruptions have a stronger effect on the El Niño Southern Oscillation (ENSO) in summer. The study, which analyzed over 6,000 climate simulations, shows that seasonal timing of eruptions matters for predicting climate responses.
A study modeled the effects of solar geoengineering and rising greenhouse gas concentrations on subtropical stratocumulus clouds. The results suggest that solar geoengineering alone may not be sufficient to prevent strong warming from direct CO2 effects.
A University of Kansas researcher found that media coverage incorporating emotion can influence how people think about climate change, making it a more significant issue. Non-governmental organizations (NGOs) also play a crucial role in creating resonance with audiences through their social media activism.
A virtual reality forest created by geographers can let people walk through a simulated forest of today and see potential future scenarios. The researchers used data on a typical Wisconsin forest to create a more organic, natural feel, allowing visitors to experience the changes brought on by climate change.
Scientists found that repeated strong atmospheric rivers played a crucial role in forming massive holes in sea ice. These holes can influence regional and global ocean circulation, affecting phytoplankton blooms and contributing to global sea-level rise.
Scientists propose genetically engineered organisms to remove CO2 from the atmosphere irreversibly. Bioengineered plants can be designed to increase crop productivity, fix nitrogen, and process energy more efficiently.
A team led by Doug MacMartin will model the effects of introducing reflective aerosols into the stratosphere to reduce Earth's temperature and limit climate change impact. The research aims to better understand the benefits and risks of this approach, with the goal of informing society's decisions.
A recent study using CRISPR-Cas technology identified a key gene responsible for heat tolerance in corals, providing insights into their response to climate change. The research found that modifying this gene made coral larvae more susceptible to heat stress.
A new study examines 12,000 years of sea-level rise and finds that changes in land area and human cultures happened at variable rates, out of step with the prevailing rate of sea-level rise. Researchers warn that future sea-level rise will not always be simple and that human responses will be equally localized.
A recent analysis suggests that California's CalEnviroScreen 3.0 index may identify only 25% of at-risk communities, while other indices reveal an additional 12.6% vulnerable to heat-related health impacts. This highlights the need for a more holistic approach to quantify vulnerability to extreme heat and other climate hazards.
New research suggests that a 2°C warming would release 230 billion tonnes of carbon from the world's soil, more than four times China's total emissions over 100 years. This 'positive feedback' effect contributes to further climate change.
Researchers at the University of Helsinki found that thawing permafrost releases volatile organic compounds, including monoterpenes and diterpenes, which can be highly reactive and contribute to cloud formation. The study's findings introduce new uncertainties to climate change modeling.
A new study suggests that restrictive border policies could exacerbate the effects of climate change on vulnerable regions, limiting their ability to emigrate. In contrast, open borders have a positive impact on developing countries, providing an important source of income through remittance and reducing vulnerability to climate change.
Researchers assessed the impact of international border policy on migration flows and climate change exposure from 2015 to 2100. They found that most migrants move to areas experiencing less severe climate change impacts when allowed to migrate.
Researchers exposed blue mussels to current and future levels of ocean acidification and warming, finding that warming alone led to increased shell growth, while both together resulted in decreased growth. Warming also caused increased brittleness, threatening the mussels' survival, but acidification mitigated some effects.