Articles tagged with Heat Waves
Research at Hokkaido University reveals that deeper Arctic snow cover can trigger wave train-like temperature distributions in Eurasia. This phenomenon causes surrounding regions to experience high temperatures due to altered westerly wind patterns.
A new study by Berkeley Lab researchers found that cool roofs could protect urbanites from heat waves, reducing air temperatures and bringing down heat wave exposures by 35 million each year. The study predicts that heat waves will become two to 10 times more frequent across California's cities by mid-century.
Heat waves in the US are becoming larger and more severe due to climate change, according to UA research. The study aims to develop predictive models for heat waves, which could inform improved planning and response to these events.
A study by Desert Research Institute researchers found a clear correlation between extreme heat and mortality rates in Las Vegas over the last decade. The study identified adults over 50 as particularly vulnerable to heat-related deaths, which often occurred due to pre-existing heart disease.
In April 2016, a mass mortality event occurred in two bat species in Cambodia due to extreme heat. The investigation suggests that the heat stress hypothesis is consistent with clinical signs and gross pathology findings.
Researchers from UC Davis and APEC Climate Center found a significant correlation between tropical rainfall and heat waves in Central California. The study analyzed data from 1979 to 2010 and identified a predictable pattern linking enhanced MJO activity in the Pacific and Indian Oceans to intense heat waves.
Researchers found that enhanced rainfall in the tropics preceded each heat wave in predictable patterns, linking tropical weather to Central California's hot weather. The study used data from 1979 to 2010 and linked heat waves to the Madden-Julian Oscillation, a large atmospheric circulation pattern.
A recent review paper by San Francisco State University Professor Jonathon Stillman examines the potential impacts of future heat waves on humans and wildlife. The study suggests that extreme heat events could become more frequent and intense, posing significant threats to human mortality and wildlife populations.
Physicists have discovered a new effect, known as Kondo-like phonon scattering, which explains the low thermal conductivity of certain materials. This discovery paves the way for creating excellent thermal insulators that conduct electricity, enabling the conversion of waste heat into electrical energy.
Researchers have discovered a history of bleaching on a coral reef in the central Pacific, which has survived extreme heatwaves due to currents that bring cold, nutrient-rich water. The reef's ability to recover after severe bleaching events is crucial for understanding how other reefs may grow back in the future.
A global online survey found that heat-related work productivity loss varies significantly between developed and developing countries. The study estimated average WPL losses of 3.5 days for developed countries and 6.6 days for developing countries under different warming scenarios.
Climate change will lead to declines in barley yields, resulting in price surges and reduced availability of beer worldwide. The study projects a decline of 16% in beer supply during severe climate events, affecting hundreds of millions of people.
A Rutgers-led study suggests that rapid Arctic warming is causing persistent dry and wet spells, leading to extreme weather events like droughts, heat waves, and storms. The frequency of these long-duration weather conditions has increased over recent decades.
A new study shows that China's North China Plain, a region with intensive irrigation, is expected to experience deadly heat waves repeatedly, with the risk being significantly increased due to higher humidity. The region faces the greatest risks to human life from rising temperatures, surpassing other global hotspots.
A Harvard T.H. Chan School of Public Health study found that students living in dormitories without air conditioning performed worse on cognitive tests compared to those with AC. During the heat wave, students without AC experienced decreases in cognitive function, including reaction times and working memory.
Researchers created computer models to understand how wheat responds to heat stress, including timing, intensity, and duration. The models predict the impact of heat waves on wheat yields and grain size, providing valuable insights for farmers to mitigate losses.
Scientists successfully forecasted summer temperatures in western China using a new model, showing high correlation with observations over most regions. The predictability is linked to interannual SST variations and tropical Pacific trends.
A recent study by Prof. Xuejie Gao and colleagues found that China's population will experience a six-fold increase in very hot days by the end of the 21st century, affecting over 0.2 billion people with no exposure to cooling. The region from Yangtze River valley to North China will see the largest increase in thermal stress.
Researchers found that urban-induced warming in Beijing increased with urban land expansion, but the rate of increase slowed down after 2000. The study also revealed an interrelationship between urban-induced warming and heat waves, suggesting that urban expansion may heighten heat waves in urban areas.
A new study suggests that a partial collapse of the Atlantic Meridional Overturning Circulation (AMOC) could lead to extreme warming in European summers. This phenomenon, known as the 'cold-ocean-warm-summer' feedback, is linked to atmospheric blocking and has been observed in recent record-breaking cold ocean temperatures.
New research shows human influence on climate change will fuel more extreme summer heat waves in the western U.S., including California and the Southwest. The study predicts man-made climate change will be a dominant driver for heat wave occurrences in specific regions by 2030 and 2050.
A global climate model predicts that arid cities like Phoenix will experience more severe heat waves by 2100 compared to their rural surroundings. This is because future arid cities will remain water-limited, while their rural neighbors are projected to be no longer dry due to increased rainfall.
Researchers found that increased fluctuations in the jet stream's path since the 1960s coincide with more extreme weather events, including heat waves, droughts, wildfires, and flooding. The study used tree ring data to reconstruct historical changes in the North Atlantic jet stream prior to the 20th century.
High-resolution climate models project significant changes in US temperature patterns, including extreme heat events and altered growing seasons. The southeastern US will experience maximum summer temperatures every other day by late-century.
Researchers found that 2/3 of heat wave variability in the Yangtze River valley can be explained by sea surface temperature forcing, while 1/3 is attributed to atmospheric internal variability. Non-ENSO SST anomalies also contribute to heat waves.
A study projects that two-thirds of Europeans will be affected by extreme weather events annually by the end of the century. Heat waves are expected to cause 99% of all future weather-related deaths, increasing from 2700 deaths/year in 1981-2010 to 151500 deaths/year in 2071-2100.
A new study predicts that South Asia, home to one-fifth of the world's population, will experience extreme heat waves with high humidity by the end of this century if greenhouse gas emissions are not reduced. The region's poor and agricultural communities will be disproportionately affected.
A study led by UCI found that a 0.5 degree Celsius rise in mean temperature doubles the probability of a heat wave killing over 100 people in India, with projections suggesting a 2.2-5.5 degree Celsius increase by the end century.
During heat waves, urban trees can significantly increase air pollution levels and the formation of ozone. Researchers found that VOCs from plants contribute to about 6-20% of ozone formation in cities, but this contribution spikes to up to 60% during heat wave periods.
A recent study suggests that human-made climate change is likely influencing giant planetary waves, which can transport heat and moisture around the globe. These waves can stall, causing droughts or floods. The research found that warming caused by greenhouse-gases from fossil fuels creates favorable conditions for such events.
A new study from UCI researchers finds that prolonged hot spells and poor air quality combine to worsen health impacts. The study analyzed 15 years of surface observations in the eastern US and Canada, finding a significant increase in adverse health effects when these factors overlap.
A Princeton-NOAA study reveals that Asian pollution is driving the persistence of smog in western US regions, despite laws curbing emissions from tailpipes and factories. The study highlights the importance of maintaining domestic emission controls on motor vehicles, power plants, and other industries.
Small species of birds are particularly susceptible to lethal dehydration in extreme heat, with the risk increasing four-fold by the end of this century. Conservation strategies are needed to conserve diverse plant and animal communities that supply shelter and water to desert birds amid future climate warming.
A study published in PNAS finds that climate change will increase the risk of lethal dehydration and mass die-offs of songbirds during heat waves. Small species are particularly susceptible to lethal dehydration due to their high water loss rates.
Researchers used supercomputer simulations to confirm the link between human-induced climate change and deadly heat waves in India and Pakistan. The study found a substantial increase in the likelihood of such heat waves, with chances expected to rise as global warming continues.
Research reveals how plants regulate their response to elevated temperatures differently between daytime and nighttime. A plant's response to heat stress is maximized during the hottest part of the day when TOC1 binds to PIF4 inhibiting its activity at night.
Researchers found that amphibian larvae increase their vegetable consumption during heat waves, leading to a reduction in carnivorous diet effectiveness. This adaptability may become common among species living in continental environments as heat waves intensify due to climate change.
Research by USC Viterbi researchers found that widespread adoption of drought tolerant vegetation in California may lead to an average daytime warming of 1.3 degrees Fahrenheit due to decreased evaporative cooling. However, lower nighttime temperatures are predicted, with a potential decrease of 6 degrees Fahrenheit, which could mitiga...
Climate scientists warn that Africa's vulnerability to climate change could lead to longer, hotter heat waves affecting life expectancy and crop production. The study found that unusual heat waves could occur four times per year towards the end of the century.
Researchers used a distinct Pacific Ocean pattern to forecast increased summer heat wave odds in the eastern US up to 50 days ahead. The study improved seasonal forecasts by predicting daily extremes, with results showing potential for early warnings on critical weather events.
Researchers identified a pattern of anomalies in the Pacific Ocean's surface temperature that consistently precedes heat waves in the eastern US by up to seven weeks. The 'Pacific Extreme Pattern' is linked to a lack of precipitation, diverting moisture away from the region and drying the land surface.
A new study led by Karen McKinnon at NCAR found that a distinct pattern of sea surface temperatures in the Pacific Ocean can predict an increased chance of summertime heat waves in the eastern US up to 50 days in advance. The research used data from 1,613 weather stations and daily sea surface temperatures to define extreme heat events...
A new heat wave formula developed by a University of Missouri researcher provides a uniform definition for extreme temperatures, enabling public health agencies to prepare for heat waves. The formula accounts for missing weather data and regional climates, improving the accuracy of heat wave warnings.
A new study predicts that heat waves could become annual occurrences across 60% of the world's land surface by 2075 if greenhouse gas emissions continue unchecked. However, aggressive emission reductions could significantly reduce the severity of these events, especially for vulnerable populations.
A new Berkeley Lab study found that cool roofs in Guangzhou, China, can lower average urban midday temperatures by 1.2 degrees Celsius during heat waves, a 50% increase over typical summer conditions. This reduction in temperature also decreases the intensity of the urban heat island effect.
Scientists have developed a new method to model heat wave magnitude, indicating that extreme heat events will increase in severity and number over the next two decades. The Heat Wave Magnitude Index daily (HWMId) takes into account both duration and intensity of heat waves.
A University of Wisconsin-Madison study found that extreme temperatures affect urban heat islands more intensely than their nonurban surroundings. This can lead to uncomfortable summers, increased health risks, and higher energy bills for city-dwellers. Climate change projections indicate that cities will be especially vulnerable to th...
A UCI study finds a significant increase in concurrent droughts and heat waves, posing a more severe threat due to their combined impact. Researchers attribute the rise to rising global temperatures, which raise the probability of extreme weather events.
An international study analyzing over 74 million deaths in 384 locations across 13 countries found that cold weather was responsible for the majority of temperature-related deaths, with most caused by moderately cold temperatures. Deaths due to non-optimal temperatures accounted for around 7.71% of all deaths.
The Intergovernmental Panel on Climate Change (IPCC) has criticized the 2°C temperature rise target as 'utterly inadequate' for protecting those at most risk from climate change. Limiting warming to 1.5°C could prevent severe impacts, preserve ecosystems, and ensure food security, says Petra Tschakert.
A heat wave in 2011 Houston resulted in significantly more emergency department visits than expected, with elderly individuals experiencing an 8.9% increase in admissions. The study suggests that heat warning systems could help prevent future emergencies.
A new study found that urban areas are experiencing a significant increase in heat waves, with extreme temperatures rising by over 50% per year. The trend is more pronounced at night due to the heat island effect, which traps heat in buildings and infrastructure.
Research finds significant increases in urban heat waves and extreme hot days over the past four decades, with four of the five years having the largest number being recent on record. Most urban areas also experienced declines in cold waves and windy days.
A Harvard study found that older adults are at increased risk of hospitalization during heat waves due to a range of health issues, including fluid and electrolyte disorders, renal failure, and urinary tract infections. The study's findings have significant implications for healthcare preparedness and prevention.
A study found that periods of extreme heat in the US were associated with an increased risk of hospitalization for older adults due to fluid and electrolyte disorders, kidney failure, and other heat-related illnesses. The risk was highest on the day of the heat wave and remained elevated for up to five days after.
A new study by Michigan State University scholar Aaron M. McCright found that only 35% of US citizens attribute extreme winter temperatures to global warming, contrary to expectations that such events would change minds.
Research from ARC Centre of Excellence for Climate System Science highlights Australia's climate as heavily influenced by global warming. Global warming doubled the chance of intense heat waves, tripled the likelihood of heatwave events and increased extreme summer temperatures across the country.
Researchers at ETH Zurich found that unploughed stubble reflects more solar radiation than tilled surfaces, resulting in a 50% higher level of reflection and a significant effect on extreme heat. No-till farming can reduce local temperatures by up to 2°C on hot days.
A study found that heat waves in Montreal increased the risk of early-term delivery by 17-27%, with nearly 20,000 births occurring after a day when temperatures reached 32°C or higher. This may lead to increased morbidity in newborns, particularly those born at 37-38 weeks.
Climate change is expected to increase heat waves in the Midwest, claiming hundreds of lives annually. A model developed by MSU systems ecologist Laura Schmitt-Olabisi reveals limitations of previous approaches to reducing deaths and hospitalizations caused by extreme heat.