Articles tagged with Climate Change
A recent seismic study reveals that Patagonia is rising as glaciers melt due to a gap in the tectonic plate under the region. The study found low seismic velocity and a thinning of the lithosphere above the gap, which is driving rapid uplift.
A study using machine learning identifies climatic thresholds driving vegetation distribution, highlighting the importance of extreme climate conditions for savannas and deciduous forests. The findings provide valuable insights for improving process-based vegetation models and their coupling with Earth System Models.
According to a new EPFL study, Swiss rivers are at risk of overheating by the end of the century. If greenhouse gas emissions are reduced, river temperatures may only rise by 1°C and discharge decreases by 5% in mountain catchments. Inaction could lead to extreme consequences, including glacier loss and decreased biodiversity.
A new study finds that top 10 banks have limited commitments to reduce financing of fossil fuels, despite increasing focus on climate change. Experts recommend policy changes to address the banking industry's responsibility in financing climate change.
The number of wildfires is projected to increase by 50% by 2100 due to climate change and land-use changes. Governments are called to radically shift their investments to focus on prevention and preparedness.
A new UNSW-led study reveals that global warming has amplified the water cycle, with an estimated 46,000-77,000 cubic kilometers of freshwater transported from the equator to the poles since 1970. This finding suggests broader changes to the global water cycle and highlights the need for improved climate models.
In the 1990s, Massachusetts activists drafted model legislation for community choice aggregation, which has been adopted by 1,800 communities in six states. The program allows cities and towns to purchase renewable energy, reducing reliance on utility companies.
New Penn State research found that the maximum wet-bulb temperature for humans is lower than previously thought, at around 31°C in warm-humid environments. This finding has significant implications for planning and preparing for extreme heat events.
A new hourly high-resolution precipitation dataset, ERA5@2km, has been developed using reanalysis over 20 European cities for the recent past thirty years. The dataset provides a basis for impact analysis at city scale, in terms of extreme hourly precipitation.
A new study examines how forests' carbon cycle varies with tree diameter, temperature, and precipitation across five continents. Small trees are found to be more important in forest productivity than previously thought, according to researchers.
Local communities worldwide report a significant decrease in wild edible plant and mushroom abundance, impacting their nutrition and food security. The study highlights the importance of considering local geographic and socio-cultural contexts to develop strategies for counteracting these changes.
A new study reveals a significant shift in the Northern Hemisphere jet stream position, increasing by up to 330 km and speed by 8% during 1871-2011. This shift is linked to warming Arctic winters and decreased temperature gradients, with implications for climate predictions and storm activity.
Researchers are using satellite imagery and deep learning to analyze ice wedges in the Arctic, which can indicate changes in permafrost. The team has achieved accuracy rates of up to 90% in detecting low-centered and high-centered polygons, providing valuable information for understanding climate change.
A Kyoto University study reveals that four major oil corporations make unsubstantial commitments to cleaner energy. Despite increased public relations efforts, these companies persistently rely on fossil fuels and show no strong evidence of a shift towards non-fossil fuel energy.
A new study found that geoengineering would reduce atmospheric CO2 levels and enhance terrestrial biosphere's net CO2 uptake. However, its effects on the ocean carbon cycle are smaller, with only a slight attenuation of ocean surface acidity and primary production.
Researchers have found that the Greenland Ice Sheet is losing mass at an unprecedented rate due to the conversion of gravitational energy from meltwater into heat. The ice sheet's basal melting rates are comparable to those measured on the surface, but without solar energy input, producing a significant source of hydropower.
A new study in Frontiers in Environmental Science reveals the impact of politics on climate change in Colombia. Deforestation dynamics vary significantly depending on municipality area and region, with coca farming predominating in the Andes and cattle ranching in the Amazon.
A global study reveals that freshwater lake ecosystems are being damaged by salt concentrations below government-protective thresholds. The loss of zooplankton triggers a cascade effect causing an increase in algae, potentially altering nutrient cycling and water quality.
A new study reveals that global warming has suppressed shrub recruitment in the Arctic and Tibetan Plateau, indicating a tipping point for cold biomes. The research found that optimal climate conditions for shrub growth have already passed in these regions.
Urbanization in China has led to an increase in biomass and carbon stocks, both in rural areas and recently developed cities. The country's afforestation strategy and green policy initiatives have contributed to this positive effect on its climate balance.
Scientists monitoring hundreds of US streams with sensor technology are gaining insights into how freshwater vital signs shift in response to land development and climate change. The data, made publicly available, will help track changes over time and provide a better understanding of the 'pulse' of streams.
Restored tropical forests can survive climate change and continue accumulating carbon until the end of the century. Prioritizing forest restoration based on factors like land cost and carbon potential is crucial for maximizing impact.
Researchers developed a new model to predict storm damage, allowing for effective resource allocation and reduction in societal consequences. The framework can be applied to various infrastructure systems and weather events, promoting better preparedness and response.
Cambridge University researchers are tackling major environmental challenges in the UK's 'vegetable garden', the Fens, through a £10 million project. The team is working with farmers, landowners, and conservation groups to develop whole system solutions for climate change, extinction, and pollution threats.
The UN Environment Programme's latest Frontiers Report identifies three critical environmental issues: urban noise pollution, wildfires, and phenological mismatches. These issues pose significant risks to public health and ecological systems, emphasizing the need for urgent action.
A new study reveals that fewer rainy days are leading to an earlier arrival of spring for plants in northern climates. The researchers found that as rainy days decline, spring arrives earlier due to increased solar radiation and clearer skies.
A new study analyzed the clean energy discourse of four large oil and gas companies, finding that their business actions and investments do not align with their climate change pledges. Despite increased use of keywords like 'climate' and 'transition', the companies have made limited progress towards decarbonization.
A new study found that hot, dry nights have increased by 45% in the US West over the past four decades, leading to more intense and frequent wildfires. The warmer nighttime conditions make it harder for firefighters to slow down or extinguish fires, which are becoming 28% more intense.
Researchers found that forests' outermost edges can store more carbon than previously assumed. Trees on these edges grow faster due to reduced competition, taking in nearly twice as much CO2 as interior trees. Soils at forest edges also absorb more CO2, contradicting current ideas about conservation and urban forest value.
Researchers propose that cognitive activity operating on a planetary scale is necessary to tackle global issues. A mature technosphere involves integrating technological systems with Earth through feedback loops, making it self-maintaining and exhibiting emergent behavior.
A region of cooling water in the North Atlantic Ocean near Iceland, nicknamed the 'Blue Blob,' has likely slowed the melting of the island's glaciers since 2011. The cold patch is predicted to persist until about 2050, before ocean and air temperatures increase leading to accelerated melting.
Scientists resolve decades-long debate on Antarctic Ice Sheet sensitivity, finding it vulnerable to small CO2 fluctuations. Research shows that large portions of the ice sheet could have disappeared under current CO2 levels.
A new study reveals that roots are the true engine of terrestrial nutrient cycling, driving biodiversity in South Africa's Fynbos and Afrotemperate Forest biomes. The research found that Fynbos plants use thinnest roots to limit nutrient availability for trees, allowing them to outcompete forest species.
Scientists at the University of Hamburg have calculated for the first time the future balance of Arctic coastal erosion, which increases by up to three meters per year with each degree of temperature increase. A shift towards greater sustainability could slow this process, but it's unlikely to stop land loss entirely.
New research suggests nuclear power can provide low-cost energy and replace natural gas as a backup source, enabling faster decarbonization in countries with poor wind resources. The analysis found that nuclear is the cheapest way to eliminate all electricity-system carbon emissions nearly everywhere.
According to a new study, lifting over 1 billion people out of poverty worldwide would increase global carbon emissions by 1.6-2.1%. The main reason for this is the huge inequality in carbon footprint between rich and poor nations. Rich countries emit significantly more carbon than poor ones.
Researchers have discovered a spray-induced gene silencing technique that effectively controls late blight, a devastating disease affecting potatoes and tomatoes. This environmentally friendly method has potential to reduce the usage of chemical pesticides and can be quickly adapted for new targets.
Researchers at CSU are developing a system to recapture and burn crankcase ventilation gas, reducing methane emissions by over 75%. The project partners with Caterpillar to test their engine and design the system, which aims to solve a significant industry problem.
A new CU Boulder analysis found that a subset of climate scenarios from the Intergovernmental Panel on Climate Change (IPCC) project between 3.6 and 5.4 degrees F of warming by 2100, with a median of 3.96 F. This is cautiously optimistic good news compared to worst-case scenarios that projected as much as 7.2 or 9 F of warming.
Researchers linked El Niño to decreased enslaved Africans transported to the Americas due to drier conditions, indicating a two-year lag. The study highlights the interplay between weather and human conflict, with lessons applicable to modern-day climate change and potential conflicts.
A new UF study found that climate change intensifies the negative effects of invasive plants on longleaf pine trees, making them more vulnerable to drought and wildfires. The experiment showed that trees under stress from both drought and invasive cogongrass were least likely to survive after fire.
Researchers developed a new technique using radar altimetry to measure river ice thickness and predict safe travel dates on ice roads and bridges in arctic regions. This method can help sustain the network of ice roads built on frozen lakes and rivers, critical for northern communities' food security.
Researchers at University of Maryland Center for Environmental Science found that marine snow particles help remove carbon dioxide from the atmosphere, contributing to a more efficient carbon cycle. The discovery sheds light on how oxygen deficient zones play a crucial role in the Earth's carbon cycle.
A new study warns that co-occurring droughts could place an unprecedented strain on the global agricultural system, threatening water security and exacerbating food insecurity. The researchers' analysis shows a ninefold increase in agricultural and human population exposure to severe co-occurring droughts by the late-21st century.
Researchers found that switching to virtual conferencing can significantly cut carbon emissions, doubling attendance from low-middle income countries, while eliminating travel-related emissions. However, the study highlights limitations, including reduced feedback survey responses and potential equity issues.
A new Stanford University study reveals that using a 100-year timeframe underestimates methane's importance in achieving Paris Agreement climate goals by up to 87%. The researchers propose using a 24-year timeframe instead, which would ensure emissions of methane are weighted correctly over the time period before temperature thresholds...
Giant kelp forests are driven by a mix of external and internal factors, according to researchers who used remote sensing technology to assess canopy biomass and age dynamics. The effects of different drivers are more pronounced at different scales.
A study found that only 15.5% of the Earth's coastal areas are ecologically intact, with high levels of biodiversity and ecosystem services relied upon by millions of people. The researchers call for increased protections and restoration targets to conserve remaining intact coastal regions.
Researchers found that peatland fires contributed to between 40% and 60% of the GHG emission impact, highlighting the need for better forest and peatland protection policies. The study's findings indicate a two- to threefold underestimation of the true impact of deforestation fires.
Researchers say a new framework can help trigger positive tipping points to tackle the climate crisis, including the growth of plant-based diets and regenerative farming methods. The Breakthrough Agenda at COP26 signals a shift in thinking, aiming to tip economic sectors into a green state.
A new study models radon production and its flow through soil, permafrost, and buildings, revealing that thawing permafrost can increase radon concentrations up to 100 times in basements. This poses a significant health risk to Arctic communities, particularly smokers.
Researchers found that migratory birds, such as bar-tailed godwits and whimbrels, can fly for up to 9 days at a time, more efficiently than previously thought. The birds also demonstrate exceptional meteorological knowledge, adapting their routes to weather systems over long distances.
A new atlas measures the movement and thickness of over 250,000 mountain glaciers worldwide, revealing a mixed picture of the globe's ice-bound freshwater resources. The research suggests there is 20% less ice available for sea level rise than previously thought, with significant implications for water availability and climate change.
A comprehensive 'vertical map' of airborne microorganisms has been created, showing that temperature is the single most important factor influencing their composition. As global temperatures rise, this could lead to significant changes in the air microbiome, affecting human health and food security.
A new Stanford University study reveals that communities near the West's wildland-urban interface are vulnerable to wildfires due to drought-sensitive ecosystems. The research identifies 18 'double-hazard' zones where plant-water sensitivity and atmospheric dryness create high wildfire risks.
Researchers have created the first global map of flow velocities for 98% of the world's glaciers using satellite images. The study found that Himalayan glaciers hold a third more water than previously estimated, while tropical Andean glaciers may be up to 23% smaller.
The MOSAiC expedition provides the first complete picture of climate processes in the central Arctic, warming twice as fast as the rest of the planet. Researchers analyzed environmental parameters over a full annual cycle, finding more dynamic and faster drifting pack ice than expected.
Researchers used drones to visualize canopy height and identify 11,153 thousand canopy disturbances, including treefalls and dead trees. These disturbances were more common in older forests with steep slopes or certain soil types.
A new study finds that changes in precipitation can determine whether Miami blue butterfly populations grow or shrink. The research simulated future conditions using climate models to test how butterfly populations would respond to shifts in rainfall patterns.
A new study suggests that implementing primary pandemic prevention actions, such as better surveillance and wildlife management, can reduce the economic costs of emerging infectious diseases by up to 10%. These actions have a substantial co-benefit of preventing carbon dioxide emissions and conserving water supplies.