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Jul 26, 2022
Scientists have developed an artificially intelligent algorithm capable of beating climate scientists at predicting how and when different materials form ice crystals. The program -- IcePic -- could help atmospheric scientists improve climate change models in the future.
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Jul 25, 2022
Exposure to extreme heat increases both chronic and acute malnutrition among infants and young children in low-income countries -- threatening to reverse decades of progress, new research finds.
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Jul 18, 2022
Passive day cooling is a promising technology for the sustainable reduction of energy consumption. Researchers have now created a test system with which the materials used for passive cooling can be reliably characterized and compared -- regardless of weather conditions and environmental conditions.
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Jul 15, 2022
Changes in atmospheric density after sunset can cause hot pockets of gas called 'plasma bubbles' to form over the Earth's equator, resulting in communication disruptions between satellites and the Earth. New AI models are now helping scientists to predict plasma bubble events and create a forecast.
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Jul 11, 2022
The good news is, pygmy blue whales appear to be thriving in the Indian Ocean. But not-so-good is that climate change may be threatening their food sources.
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Jul 07, 2022
Researchers have established that the destruction of ozone over the Arctic in the spring causes abnormal weather throughout the northern hemisphere, with many places being warmer and drier than average -- or too wet.
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Jul 07, 2022
Increases in three climate factors -- temperature, rainfall, and ocean warming -- predicted mosquito population growth in Sri Lanka for the next one to six months, according to a new study. The findings can inform the design and timing of programs to limit the spread of mosquito-borne diseases like dengue.
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Jul 06, 2022
A new analysis of observed temperatures shows the Arctic is heating up more than four times faster than the rate of global warming. The trend has stepped upward steeply twice in the last 50 years, a finding missed by all but four of 39 climate models.
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Jul 06, 2022
As it captivated people around the world, the January eruption of the Hunga Tonga-Hunga Ha'apai volcano gave scientists a once-in-a-lifetime chance to study how the atmosphere works, unlocking keys to better predict the weather and changing climate.
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Jul 04, 2022
The imbalance of energy on Earth is the most important metric in order to gauge the size and effects of climate change, according to a new study.
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Jul 01, 2022
A study reveals an unprecedented change in the fire regime in Europe which is related to climate change. The affected areas are in Southern, Central and Northern Europe but this historical change in Europe's fire regime is more intense in the Mediterranean area.
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Jul 01, 2022
The eruption of the Hunga Tonga-Hunga Ha'apai submarine volcano in January 2022 was one of the most explosive volcanic events of the modern era, a new study has confirmed.
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Jun 30, 2022
New research highlights how the risk of wildfire is rising globally due to climate change -- but also, how human actions and policies can play a critical role in regulating regional impacts. The study shows that anthropogenic climate change is a 'push' factor that enhances the risk of wildfires globally.
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Jun 28, 2022
For a long time, climate scientists have struggled to link extreme weather events to climate change. This has changed. The science of weather event attribution is now beginning to show the true costs and impacts that human-caused climate change is having today. This fast-growing body of research aims to disentangle the various drivers of extreme weather events from human-induced climate change and the best assessments can provide valuable information in insuring against loss and damage, funding adaptation measures, and litigating against polluters.
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Jun 28, 2022
Extremely high temperatures have been reported by India and Pakistan in the spring. In a new scientific journal article, researchers paint a gloomy picture for the rest of the century. Heat waves are expected to increase, affecting up to half a billion people in South Asia every year.
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Jun 28, 2022
Intense heat in the southwestern United States broke records last summer partly because it hit in tandem with an unusually severe drought, finds a new study measuring for the first time how the two extreme weather events dangerously interacted in real time.
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Jun 27, 2022
A new study examines the context surrounding the fires and offers insight into the historical role of large, high-severity fires -- and the future of wildfires -- west of the Cascades.
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Jun 23, 2022
Engineers can adapt weather forecasting models to give individuals a personalized assessment of their risk of exposure to COVID-19 or other diseases.
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Jun 16, 2022
Heatwaves are making more people in rural areas of England severely ill today than they were in the 1980s, according to new research.
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Jun 13, 2022
With the rising cost of nitrogen fertilizer and its impacts on air and water quality, researchers want to help farmers make more informed fertilizer rate decisions. Their latest modeling effort aims to do that by examining the role of pre-growing season weather on soil nitrogen dynamics and end-of-season corn yield.
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Jun 03, 2022
While coastal flooding from tropical weather events such as hurricanes tend to get a lot of media attention, a new study from the University of Delaware found that midlatitude weather events like Nor'easters can produce flood levels just as severe and occur much more frequently in the Mid-Atlantic.
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May 31, 2022
When electric grids go down, there's no way to restore them -- 'blackstart' them -- with power from wind turbines. A team is now working to develop strategies and controllers that would reenergize power grids dominated by wind power. In Iowa, wind turbines now produce 55% of the state's electricity.
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May 31, 2022
A new technique uses artificial intelligence to efficiently update the vegetation maps that are relied on by wildfire computer models to accurately predict fire behavior and spread.
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May 30, 2022
During heavy storms, the normally stratified layers of water in ocean fjords get mixed, which leads to oxygenation of the fjord floor. But these storm events also result in a spike in methane emissions from fjords to the atmosphere. Researchers have estimated that the total emissions of this climate-warming gas are as great from fjords as from all the deep ocean areas in the world put together.
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May 25, 2022
Climate change gives rise to more unstable weather, local droughts and extreme temperature records, but a coherent theory relating local and global climate is still under active development. Now an astrophysics student has used a mathematical approach -- inspired by research in the Universe's light -- to unveil how global temperature increase engenders locally unstable weather on Earth.
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May 24, 2022
A research team reveals the reason behind hot and wet winters in northwest Russia from 2019/20 winter. Anthropogenic influence found to be the reason for widespread warming according to the CMIP6 data.
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May 20, 2022
Most research looking at the impact of climate change on human life has focused on how extreme weather events affect economic and societal health outcomes on a broad scale. Yet climate change may also have a strong influence on fundamental daily human activities -- including a host of behavioral, psychological, and physiological outcomes that are essential to wellbeing. Investigators now report that increasing ambient temperatures negatively impact human sleep around the globe.
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May 18, 2022
New research identifies three specific orientations of atmospheric phenomena occurring near the equator over the Maritime continent that increase the probability of severe U.S. weather events three to four weeks later.
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May 17, 2022
Scientists determined that by increasing the accuracy of weather forecasts over the last decade, consumers netted at least $384 million in energy savings. The researchers based their predictions on NOAA's High Resolution Rapid Refresh model, which provides daily weather forecasts for every part of the U.S. These include wind speed and direction data, which utilities can use to gauge how much energy their turbines will produce.
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May 13, 2022
Deep sand movements stirred up by intense storms may offset some of the impacts of coastal erosion caused by sea level rise.
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May 07, 2022
Using future projections from the latest generation of Earth System Models, a recent study found that most of the world's ocean is steadily losing its year-to-year memory under global warming.
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May 05, 2022
Neural-Fly technology could one day build the future of package delivery drones and flying cars.
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May 05, 2022
A new study has revealed the most intense heatwaves ever across the world -- and remarkably some of these went almost unnoticed decades ago.
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May 03, 2022
A new study provides a framework for a snowpack decision support tool that could help water managers prepare for potential flooding during rain-on-snow events, using hourly data from existing snow monitoring stations.
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May 03, 2022
Storms in the Sahel region, which can reach over 100km in size, have become more extreme since the 1980s due to global warming, with more intense rainfall. An online portal will enable forecasters in West Africa to provide communities with earlier and more reliable warnings about large storms.
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May 03, 2022
As reservoir levels dwindle in the Southwest, scientists have developed a method to estimate summer rainfall in the region months in advance. These seasonal predictions can enable state and local officials to make key reservoir and water allocation decisions earlier in the season and support more efficient water management.
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Apr 29, 2022
Researchers used supercomputers to run high-resolution climate simulations that show how historically-impactful storm events could look in a warmer world. The researchers simulated five of the most powerful storms that have hit the San Francisco Bay Area since 1984, then projected how these historical storms would look in 2050 and 2100. They determined that some of these extreme events would deliver 26-37 percent more rain by 2100.
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Apr 26, 2022
A research team has created simulations from coupled climate and hydrologic models that demonstrate widespread increases in the occurrences of flash flooding events across most of the United States.
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Apr 21, 2022
A record-setting rainstorm over Kaua'i, Hawai'i in April 2018 resulted in severe flash flooding and estimated damage of nearly $180 million. The deluge damaged or destroyed 532 homes, and landslides left people along Kaua'i's north coast without access to their homes. Atmospheric scientists have now revealed that severe supercell thunderstorms were to blame.
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Apr 20, 2022
Scientists have noticed grave disparities in artificial intelligence, noting that the methods are not objective, especially when it comes to geodiversity. AI tools, whether forecasting hail, wind or tornadoes, are assumed to be inherently objective, says one of the researchers. They aren't, she says.
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Apr 11, 2022
A new study has found using indoor fans more often allows people to reduce their air conditioner use without changing how hot they feel, paving a way for reducing future energy use and greenhouse gas emissions.
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Apr 06, 2022
Climate changes in the tropical Pacific have temporarily put the brakes on rapid warming and ice melting in Greenland.
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Apr 04, 2022
The western United States this century is facing a greatly heightened risk of heavy rains inundating areas recently scarred by wildfires, new research warns. Such events can cause significant destruction, including debris flows, mudslides, and flash floods, because the denuded landscape cannot easily contain the drenching moisture.
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Mar 29, 2022
Scientists have discovered a new source of super-fast, energetic electrons raining down on Earth's atmosphere, a phenomenon that contributes to the colorful aurora borealis and poses hazards to satellites, spacecraft and astronauts.
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Mar 28, 2022
Researchers have used computer simulations to show that weather phenomena such as sudden downpours could potentially be modified by making small adjustments to certain variables in the weather system. They did this by taking advantage of a system known as a 'butterfly attractor' in chaos theory, where a system can have one of two states -- like the wings of a butterfly -- and that it switches back and forth between the two states depending on small changes in certain conditions.
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Mar 26, 2022
A superhuman effort by an army of volunteers during the UK's first COVID-19 lockdown has resulted in 5.2 million rainfall observations, recorded by hand on paper sheets now stored in the Met Office archives, being added to a digital national record. The record now has significantly more data for pre-1960 and has filled in what was a data black hole pre-1862. The work has revealed some record-breaking 19th century weather, which is published in a new paper.
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Mar 25, 2022
A vertical wind tunnel has supplied important data to facilitate the prediction of heavy rain, hail, and graupel precipitation.
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Mar 21, 2022
A new study used artificial intelligence to analyze 10 years of weather data collected over southeastern Texas to identify three major categories of weather patterns and the continuum of conditions between them. The study will help scientists seeking to understand how aerosols -- tiny particles suspended in Earth's atmosphere -- affect the severity of thunderstorms.
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Mar 15, 2022
The climate pattern El Niño varies to such a degree that scientists will have a hard time detecting signs that it is getting stronger with global warming. That's the conclusion of a study that analyzed 9,000 years of Earth's history. The scientists drew on climate data contained within ancient corals and used one of the world's most powerful supercomputers to conduct their research.
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Mar 14, 2022
Prolonged droughts and heat waves have negative consequences both for people and the environment. If both of these extreme events occur at the same time, the impacts, in the form of wild fires, tree mortality or crop losses -- to name a few examples -- can be even more severe. Climate researchers have now discovered that, assuming a global temperature increase of two degrees in the course of global warming, the future frequency of these simultaneously occurring extreme events is primarily determined by local precipitation trends. Understanding this is important, since it enables us to improve our risk adaptation to climate change and our assessment of its consequences, according to the researchers.
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Mar 07, 2022
Global weather fluctuations called El Niño events are likely to become more frequent by 2040, a new study shows.
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Mar 07, 2022
A new study challenges a commonly accepted explanation that a 'sudden stratospheric warming' caused the unusually cold weather over the U.S. early last year, a view which was widely reported in the media and discussed among scientists at the time.
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Mar 07, 2022
The Amazon rainforest is likely losing resilience, data analysis from high-resolution satellite images suggests. This is due to stress from a combination of logging and burning -- the influence of human-caused climate change is not clearly determinable so far, but will likely matter greatly in the future. For about three quarters of the forest, the ability to recover from perturbation has been decreasing since the early 2000s, which the scientists see as a warning sign. The new evidence is derived from advanced statistical analysis of satellite data of changes in vegetation biomass and productivity.
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Mar 07, 2022
The death rate linked to extreme temperatures will increase significantly under global warming of 2°C, finds a new report. Temperature-related mortality -- where a death is directly linked to climate temperature -- in England and Wales during the hottest days of the year will increase by 42% under a warming scenario of 2°C from pre-industrial levels. This means an increase from present-day levels of around 117 deaths per day, averaged over the 10 hottest days of the year, to around 166 deaths per day. The findings underline the importance of keeping global warming levels to below 2°C.
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Mar 04, 2022
Analysis of climate models finds aerosols from air pollution were far more important in influencing the Eurasian summer jet stream, which shapes Northern Hemisphere weather, than previously thought. It counters the previous suggestion that greenhouse gas-forced Arctic warming was the main driver of the weakening of the jet stream. This is the first time that aerosols have been shown so clearly to affect such an important feature of the large-scale atmospheric circulation, which influences strength of storms and wet and dry weather in different regions.
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Mar 02, 2022
Paleoclimate data retrieved from ocean sediment cores dating back 130,000 years show that sustained warming in the Indian Ocean during the Last Interglacial increased convective rainfall above the ocean, but weakened Indian Summer Monsoon rainfall on land.
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Feb 23, 2022
The likelihood of hot, dry, windy autumn weather that can set the stage for severe fires in California and western Oregon has increased 40 percent due to human-caused climate change, new computer models show.
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Feb 22, 2022
The Northern Hemisphere Jet Stream, which this week brought storms Dudley, Eunice and Franklin to the UK has been getting faster and moving northwards over the past century.
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Feb 19, 2022
Climate experts and engineers have created a new model to predict the damage caused by adverse weather. This new framework for 'consequence forecasting' enables first responders to effectively target resources prior to an extreme weather event, such as Storm Eunice.
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Feb 17, 2022
The United States is expected to experience as much sea level rise by the year 2050 as it witnessed in the previous hundred years. That's according to a NOAA-led report updating sea level rise decision-support information for the U.S. released in partnership with half a dozen other U.S.federal agencies.
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Feb 15, 2022
Temperature fluctuations such as heatwaves can have very different effects on infection rates and disease outcomes depending on the average background temperature, says a new report.
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Feb 15, 2022
A computer modeling study shows how the emissions of the greenhouse gas nitrous oxide have increased from soils over the last century. The newly published research found the expansion of land devoted to agriculture since 1900 and intensive fertilizer inputs have predominantly driven an overall increase in nitrous oxide emissions from U.S. soils.
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Feb 11, 2022
The oceanic phenomenon El Niño significantly affected the number of enslaved Africans transported from West Africa to the Americas between the mid-1600s and mid-1800s, according to a new study. The study bridges atmospheric science with African history, carrying lessons for a warming future. It found that, much like tree rings and corals, El Niño can be used as a proxy for historical rainfall and temperature patterns in West Africa.
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Feb 10, 2022
Understanding when and where trees die in vast tropical forests is a challenging first step toward understanding carbon dynamics and climate change. Researchers explained variations in tree mortality over a five-year period by analyzing drone images of one of the most-studied tropical forests in the world, Barro Colorado Island in Panama.
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Feb 08, 2022
Due to climate change, Arctic winters are getting warmer. An international study shows that Arctic warming causes temperature anomalies and cold damage thousands of kilometers away in East Asia. This in turn leads to reduced vegetation growth, later blossoming, smaller harvests and reduced CO2 absorption by the forests in the region.
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Feb 08, 2022
When Hurricane Maria slammed into Puerto Rico in September 2017 as a high-end category 4 storm, it left in its wake the largest catastrophe in the history of the island. Along with the human toll, the devastation impacted all the island's wildlife, including a group of free-ranging rhesus macaques living on the isolated Cayo Santiago island near Puerto Rico. Now, a team of scientists has published one of the first results that shows the effects of natural disasters may have molecularly accelerated aging in the monkeys' immune systems.
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Feb 07, 2022
Unprecedented mass loss from three Antarctic glaciers could signal global climate trouble ahead, a researcher warns. A multinational collaboration is using an advanced remote imaging system to document the Pope, Smith and Kohler glaciers with clarity and completeness never achieved before.
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Feb 07, 2022
Hundreds of international researchers are currently analyzing observations from the one-year MOSAiC expedition, during which hundreds of environmental parameters were recorded with unprecedented accuracy and frequency over a full annual cycle in the Central Arctic Ocean.
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Feb 03, 2022
Melting and sublimation on Mount Everest's highest glacier due to human-induced climate change have reached the point that several decades of accumulation are being lost annually now that ice has been exposed, according to a research team that analyzed data from the world's highest ice core and highest automatic weather stations.
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Feb 01, 2022
New research reveals excessively warm ocean temperatures driven by climate change are the new normal. The study establishes that more than half of the ocean surface has exceeded a historical heat extreme threshold on a regular basis since 2014. Researchers conducted the study by mapping 150 years of sea surface temperatures to determine a fixed historical benchmark for marine heat extremes. The scientists then looked at how often and how much of the ocean surpassed this point. The first year in which more than half of the ocean experienced heat extremes was 2014. The trend continued in subsequent years, reaching 57 percent of the ocean in 2019, the last year measured in the study. Using this benchmark, just two percent of the ocean surface was experiencing extremely warm temperatures at the end of the 19th century.
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Feb 01, 2022
In 2017, Hurricane Harvey stalled after making landfall over coastal Texas, pouring down record rainfall, flooding communities and becoming one of the wettest and most destructive storms in United States history. A new technique using readily available data reduces forecast errors and could improve track, intensity and rainfall forecasts for future storms like Hurricane Harvey, according to scientists.
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Jan 27, 2022
New research looks to improve prediction of brief but intense rainstorms that can cause devastating flash floods and landslides. Intense rain associated with narrow cold-frontal rainbands may last only a few minutes at a particular location, yet the rain can cause catastrophic flash flooding, debris flows and landslides, and can occur along with tornadoes and severe thunderstorms.
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Jan 26, 2022
Strict COVID-19 lockdown policies such as workplace closures in European cities reduced levels of air pollution and the number of associated deaths, according to new estimates.
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Jan 26, 2022
Urban greening is unlikely to provide a single fix for tackling extreme weather events brought on by climate change, scientists have suggested.
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Jan 25, 2022
Taking into account a variety of trees and green structures in four otherwise similar residential courtyards, a new study evaluates their effects on thermal comfort, biodiversity, carbon storage and social interaction. The authors show that those courtyards with more green structures yield considerably better results than those with fewer, and in their cooling capacity have a significant impact on people's thermal comfort.
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Jan 24, 2022
Last summer's Western North American heat dome caused more than record-breaking temperature increases--rising anxiety about climate change is reported in a new study on the weather event's impact on our mental health.
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Jan 19, 2022
Computer simulations of snow cover can accurately forecast avalanche hazard, according to a new international study. Currently, avalanche forecasts in Canada are made by experienced professionals who rely on data from local weather stations and on-the-ground observations from ski and backcountry ski operators, avalanche control workers for transportation and industry, and volunteers who manually test the snowpack.
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Jan 18, 2022
Extreme rainfall events associated with atmospheric rivers, narrow bands transporting large amounts of moisture in the atmosphere, are becoming more frequent and severe in mountainous parts of East Asia as the climate changes. According to global and regional climate models comparing historical trends with a future scenario of 4 degrees of warming of global-mean surface air, these events are likely to become more frequent and intense in the future, especially in the Japanese Alps region.
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Jan 14, 2022
Earth's global average surface temperature in 2021 tied with 2018 as the sixth warmest on record, according to independent analyses done by NASA and NOAA. Collectively, the past eight years are the warmest years since modern recordkeeping began in 1880.
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Jan 12, 2022
Economic growth goes down when the number of wet days and days with extreme rainfall go up, a team of scientists finds. Rich countries are most severely affected and herein the manufacturing and service sectors, according to their study. The data analysis of more than 1.500 regions over the past 40 years shows a clear connection and suggests that intensified daily rainfall driven by climate-change from burning oil and coal will harm the global economy.
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Jan 11, 2022
Clouds have significant impact on the energy balance of the Earth system. Low clouds such as Stratocumulus, Cumulus and Stratus cover about 30 percent of the Earth surface and have a net cooling effect on our climate. What counteracts global warming, can have economic consequences: a persistently dense and low cloud cover over land can reduce agricultural production and the solar-power generation. Understanding the factors governing low cloud cover is not only important for regional weather forecasting and global climate prediction but also for their socioeconomic effects.
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Jan 10, 2022
Researchers show that the increase of sea ice surrounding Antarctica since 1979 is a unique feature of Antarctic climate since 1905 -- an observation that paints a dramatic first-ever picture for weather and climate implications on the world's southernmost continent.
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Jan 06, 2022
Large wildfires and severe heat events are happening more often at the same time, worsening air pollution across the western United States, a study has found. In 2020, more than 68% of the western U.S. -- representing about 43 million people -- were affected in one day by the resulting harmful-levels of air pollution, the highest number in 20 years. The study found that these concurrent air pollution events are increasing not only in frequency but duration and geographic extent across the region. They have become so bad that they have reversed many gains of the Clean Air Act. The conditions that create these episodes are also expected to continue to increase, along with their threats to human health.
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Jan 05, 2022
Research has revealed frequent storm activity in coastal areas is a previously unrecognized way in which deforestation can increase flooding. The study found the frequency of thunderstorms in some fast-growing African coastal cities has doubled over the past 30 years, with much of this increase linked to the impact of deforestation on the local climate.
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Jan 05, 2022
Two studies project the future of power supply and demand on the West Coast under different scenarios: one under climate change and another where power sources shift toward renewables and the climate follows historic trends.
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Dec 20, 2021
The tropics is becoming hotter due to a combination of warming associated with deforestation and climate change -- and that can reduce the ability of outdoor workers to perform their jobs safely. Researchers estimated how many safe working hours people living in the tropics have lost due to local temperature change associated with loss of trees during the past 15 years.
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Dec 19, 2021
Like atmospheric rivers, but smaller and slower moving, the pools of water vapor bring much-needed rain from the Indo-Pacific to arid regions along the east African coast.
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Dec 19, 2021
Some marine species can help protect others from climate change by shielding them from heat, according to a new study.
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Dec 19, 2021
Scientists have developed an all-season smart-roof coating that keeps homes warm during the winter and cool during the summer -- without consuming natural gas or electricity. Research findings point to a groundbreaking technology that outperforms commercial cool-roof systems in energy savings.
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Dec 19, 2021
City living translates to an extra two to six hours of uncomfortable weather per day in the summer for people in much of the United States. The urban-rural heat gap grows the warmer it gets.
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Dec 17, 2021
While much is known about extreme weather events on land, there has been little research into those that occur in the ocean. A study led by ETH Zurich uses models to show for the first time that marine heatwaves, and extremes with high acidity or low oxygen can also occur conjointly -- with difficult to foresee consequences for marine life.
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Dec 16, 2021
Multiple large heatwaves the size of Mongolia occurred at the same time nearly every day during the warm seasons of the 2010s across the Northern Hemisphere, according to a new study. Using ERA5 climate data from 1979 to 2019, the researchers found that the number of heatwaves occurring simultaneously in the mid- to high-latitudes of the Northern Hemisphere was seven times greater in the 2010s than in the 1980s. On average, there were concurrent heatwaves on 143 days each year of the 2010s -- almost every day of the 153 days of the warm months of May through September. The concurrent heat events also grew hotter and larger: their intensity rose by 17% and their geographic extent increased 46%.
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Dec 14, 2021
New research shows that physics measurements of just a small portion of reef can be used to assess the health of an entire reef system. The findings may help scientists grasp how these important ecosystems will respond to a changing climate.
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Dec 14, 2021
Smart sensing technology to help farmers use fertilizer more effectively and reduce environmental damage has been created by bioengineers.
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Dec 07, 2021
Managing the United States' growing wild pig population has become a significant challenge over the past few decades, but new research may help landowners and government agencies fine-tune their strategies for limiting crop and property damage caused by the animals.
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Dec 06, 2021
Global warming makes long lasting weather situations in the Northern hemisphere's summer months more likely -- which in turn leads to more extreme weather events, a novel analysis of atmospheric images and data finds. These events include heatwaves, droughts, intense rainy periods. Especially in Europe, but also in Russia, persistent weather patterns have increased in number and intensity over the last decades with weather extremes occurring simultaneously at different locations.
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Dec 02, 2021
The expansion of renewable energies is placing increasing demands on the power grids. Precise forecasts of the amount of solar power that will be fed into the grid is key to effective energy management. In addition to clouds, aerosol particles also strongly influence the amount of electricity generated by photovoltaic systems. Current air quality models are a good basis for estimating the production of solar electricity, but they could be further improved.
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Dec 02, 2021
Scientists have now used climate modeling, rather than storm records, to reconstruct the history of hurricanes and tropical cyclones around the world. The study finds that North Atlantic hurricanes have indeed increased in frequency over the last 150 years, similar to what historical records have shown.
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Nov 30, 2021
Monsoons are continental weather events produced when intense summer sunlight heats land more than ocean. But new supercomputer simulations show that North America's only monsoon works differently. The North American monsoon, which drenches western Mexico and the American Southwest each summer, is generated when the jet stream collides with the Sierra Madre mountains, which diverts it southward and upward, condensing moisture laden air from the eastern Pacific into torrential rains.
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Nov 29, 2021
Using observations from NASA's ICON mission, scientists presented the first direct measurements of Earth's long-theorized dynamo on the edge of space: a wind-driven electrical generator that spans the globe 60-plus miles above our heads. The dynamo churns in the ionosphere, the electrically charged boundary between Earth and space. It's powered by tidal winds in the upper atmosphere that are faster than most hurricanes and rise from the lower atmosphere, creating an electrical environment that can affect satellites and technology on Earth.
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