Showing 20 articles starting at article 421
< Previous 20 articles Next 20 articles >
Categories: Ecology: Trees, Geoscience: Severe Weather
Published Supercomputer used to simulate winds that cause clear air turbulence


Using Japan's most powerful supercomputer, researchers reproduced cases of clear air turbulence around Tokyo. They simulated the fine vortices responsible for this dangerous phenomenon. The usefulness of the simulation in predicting turbulence was confirmed by comparing simulation data with data from aircraft recordings. This research should improve the forecasting of turbulence.
Published Forest can adapt to climate change, but not quickly enough



America's forests have a tough time in store for them. Climate change is increasing temperatures and decreasing moisture levels across the country, not a winning combination for trees.
Published Study reveals how a tall spruce develops defense against hungry weevils



A study has identified genes involved in development of stone cells -- rigid cells that can block a nibbling insect from eating budding branches of the Sitka spruce evergreen tree. The insect's attack has stunted the growth of these forest giants.
Published Biotechnology offers holistic approach to restoration of at-risk forest tree species



Many at-risk forest tree species will probably need biotechnology along with traditional tree-breeding approaches to survive, according to new insights.
Published Marine heat waves caused mass seabird die-offs, beach surveys show



New research uses data collected by coastal residents along beaches from central California to Alaska to understand how seabirds have fared in recent decades. The paper shows that persistent marine heat waves lead to massive seabird die-offs months later.
Published Three things to know: Climate change's impact on extreme-weather events



Researchers found that the effects of climate change on the intensity, frequency, and duration of extreme weather events, like wildfires, could lead to massive increases in all three.
Published Birds raise fewer young when spring arrives earlier in a warming world



A new study of North American songbirds finds that birds can't keep up with the earlier arrival of spring caused by climate change. As a result, they're raising fewer young. By the end of the 21st century, climate change will cause springlike weather to begin 25 days earlier, but birds will only breed about seven days earlier. That change could lead to an average reduction of 12% in breeding productivity for songbird species.
Published New study reveals abrupt shift in tropical Pacific climate during Little Ice Age



An El Niño event has officially begun. The climate phenomenon, which originates in the tropical Pacific and occurs in intervals of a few years will shape weather across the planet for the next year or more and give rise to various climatic extremes. El Niño-like conditions can also occur on longer time scales of decades or centuries. This has been shown to have occurred in the recent past.
Published Scientists propose new strategy for modern sails to help shipping sector meet its carbon reduction goals



Researchers have identified a strategy that can offset the random and unpredictable nature of weather conditions that threaten carbon emission reduction efforts in the shipping sector.
Published A seed survival story: How trees keep 'friends' close and 'enemies' guessing



A new study that included millions of tree-year observations worldwide for the first time documents and analyzes the intricate balance between seed defense and dispersal by forest trees at a global scale.
Published Freely available risk model for hurricanes, tropical cyclones



As human-driven climate change amplifies natural disasters, hurricanes and typhoons stand to increase in intensity. Until now, there existed very few freely available computer models designed to estimate the economic costs of such events, but a team of researchers has recently announced the completion of an open-source model that stands to help countries with high tropical cyclone risks better calculate just how much those storms will impact their people and their economies.
Published New nationwide modeling points to widespread racial disparities in urban heat stress



Using a combination of satellite data and modeling to study the temperatures and humidity people might feel in urban areas, researchers have pinpointed who in the U.S. is most vulnerable to heat stress.
Published City buildings could blow air taxi future off course



Air taxis may be coming to our cities in the near future, but a new study warns regulations will need to address dangerous wind gusts around city buildings and other urban infrastructure.
Published Flooding tackled by helping citizens take action



Scientists have developed a new method that empowers citizens to identify solutions to climate change threats.
Published 'Shoebox' satellites help scientists understand trees and global warming



As scientists try to understand the effect of climate on trees, advances in imaging technology are helping them see both the whole forest and every individual tree. High-resolution images taken by cubesats, small, shoebox-sized devices launched into low Earth orbit, are helping environmental scientists make more precise measurements about trees' response to a warming climate.
Published Wildfire smoke downwind affects health, wealth, mortality



Smoke particulates from wildfires could cause between 4,000 and 9,000 premature deaths and cost between $36 to $82 billion per year in the United States, according to new research.
Published A Tongan volcano plume produced the most intense lightning rates ever detected



New research showed that the plume emitted by the Hunga Volcano eruption in 2022 created the highest lightning flash rates ever recorded on Earth, more than any storm ever documented.
Published 10-year countdown to sea-ice-free Arctic



Research team predicts Arctic without ice by the end of 2030s if current increasing rate of greenhouse gas emission continues.
Published Newly planted vegetation accelerates dune erosion during extreme storms, research shows



Newly planted vegetation on coastal sand dunes can accelerate erosion from extreme waves.
Published Older trees accumulate more mutations than their younger counterparts



A study of the relationship between the growth rate of tropical trees and the frequency of genetic mutations they accumulate suggests that older, long-lived trees play a greater role in generating and maintaining genetic diversity than short-lived trees.