Current Drought News and Events

Current Drought News and Events, Drought News Articles.
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Terrestrial laser scanning for monitoring hydrological cycle of trees
Water is an essential element for all living things. Understanding the dynamics of water in trees is crucial for understanding the consequences of climate change and altered water availability for forest ecosystems. A joint research project with Samuli Junttila PhD, and Professor Masato Katoh of Shinshu University's Institute for Mountain Science and others demonstrates a new laser scanning based method that can be used to monitor changes in leaf water content of tree communities. (2021-02-22)

Groundwater recharge rates mapped for Africa
Rapid population growth in many African countries plus climate change has focused attention on the increased development of groundwater for irrigation and drinking water supplies. (2021-02-16)

Fingerprint for the formation of nitrous oxide emissions
Scientists led by Eliza Harris and Michael Bahn from the Institute of Ecology at the University of Innsbruck have succeeded in studying emissions of the greenhouse gas N2O under the influence of environmental impacts in an unprecedented level of detail. The study, which has now been published in Science Advances, is thus also a starting point for the creation of models that could predict future trends in the greenhouse gas emission dynamics of ecosystems under global climate change. (2021-02-05)

Kangaroo overgrazing could be jeopardising land conservation, study finds
The native species has reached numbers that are contributing to drier soil and less vegetation - and may be more damaging to conservation areas than rabbits. (2021-02-03)

Newly discovered trait helps plants grow deeper roots in dry, compacted soils
A previously unknown root trait allows some cereal plants to grow deeper roots capable of punching through dry, hard, compacted soils, according to Penn State researchers, who suggest that harnessing the inherited characteristic could lead to crops better able to deal with a changing climate. (2021-02-01)

Late rainy season reliably predicts drought in regions prone to food insecurity
The onset date of the yearly rainy season reliably predicts if seasonal drought will occur in parts of Sub-Saharan Africa that are particularly vulnerable to food insecurity, and could help to mitigate its effects. Shraddhanand Shukla and colleagues at the University of California, Santa Barbara's Climate Hazards Center, present these findings in the open-access journal PLOS ONE on January 20, 2021. (2021-01-20)

Scientists offer road map to improve environmental observations in the Indian Ocean
A group of more than 60 scientists have provided recommendations to improve the Indian Ocean Observing System (IndOOS), a basin-wide monitoring system to better understand the impacts of human. (2021-01-15)

New climate change study: Number of people suffering extreme droughts will double
Michigan State University is leading a global research effort to offer the first worldwide view of how climate change could affect water availability and drought severity in the decades to come. By the late 21st century, global land area and population facing extreme droughts could more than double -- increasing from 3% during 1976-2005 to 7%-8%, according to Yadu Pokhrel, associate professor of civil and environmental engineering in MSU's College of Engineering, and lead author of the research published in Nature Climate Change. (2021-01-11)

Research confirms increase in river flooding and droughts in US, Canada
Research demonstrates that increases in the frequency of both high- and low-flow extreme streamflow events 'are, in fact, widespread.' (2021-01-07)

Hawai'i drought during El Niño winter? Not always, according to new research
El Niño events have long been perceived as a driver for low rainfall in the winter and spring in Hawai'i, creating a six-month wet-season drought. However, a recent study by researchers in the University of Hawai'i at Mānoa revealed the connection between Hawai'i winter rainfall and El Niño is not as straightforward as previously thought. (2021-01-06)

Drought of the century in the Middle Ages -- with parallels to climate change today?
The transition from the Medieval Warm Period to the Little Ice Age was apparently accompanied by severe droughts between 1302 and 1307 in Europe. In the journal Climate of the Past, researchers from the Leibniz Institutes for the History and Culture of Eastern Europe (GWZO) and Tropospheric Research (TROPOS) write that the 1302-07 weather patterns display similarities to the 2018 weather anomaly, in which continental Europe experienced exceptional heat and drought. (2021-01-05)

Climate change caused mangrove collapse in Oman
Most of the mangrove forests on the coasts of Oman disappeared about 6,000 years ago. Until now, the reason for this was not entirely clear. A current study now sheds light on this: It indicates that the collapse of coastal ecosystems was caused by climatic changes. The results are published in the journal Quaternary Research. (2021-01-05)

Droughts, viruses and road networks: Trends that will impact our forests
A new UCPH study assembled an array of experts to highlight major trends that will impact the world's forests, and the people living around them, in the decade ahead. These trends include drought, viral outbreaks and vast infrastructure expansions across the globe. According to the researchers, a global strategy for human-nature interaction must be developed if we intend on ensuring the survival of both. (2020-12-22)

Identifying where to reforest after wildfire
Forest managers can now look to a newly enhanced, predictive mapping tool to learn where forests are likely to regenerate on their own and where replanting efforts may be beneficial. This study also indicates a not-so-evergreen future of fewer conifers. (2020-12-18)

Tepary beans -- a versatile and sustainable native crop
This drought and heat tolerant crop can provide nutrition, even when grown in harsh environments. (2020-12-16)

Microbes and plants: A dynamic duo
The unique partnership between root-dwelling microbes and the plants they inhabit can reduce drought stress. (2020-12-09)

Why do elephants and tigers still roam in India? Study offers clues
A study documenting four extinctions of large mammals on the Indian Subcontinent sheds light on why elephants, tigers, and rhinos still roam there. (2020-12-08)

Central Europe: dry Aprils pave the way for summer droughts
In the past 20 years, Central Europe has experienced six summer heat waves and droughts. Until now, however, it was unclear what factors led to these extreme events. (2020-12-07)

Jaguars robust to climate extremes but lack of food threatens species
QUT researchers lead a world-first investigation into the chances of wild jaguars surviving climate extremes with six scenarios modelling the behaviour, mating, births of cubs, competition, illegal hunting, death from starvation and availability of prey. (2020-11-30)

Link found between drought and HIV among women in less-developed countries
Lehigh University Professor Kelly Austin explores the consequences of drought and lack of environmental resources on women in less-developed countries. The research shows the direct and indirect associations to women's percentage of HIV. (2020-11-30)

Tree rings capture an abrupt irreversible shift in east Asia's climate
The abrupt shift to hotter and drier conditions over inner East Asia is unprecedented and may herald an irreversible shift to a new climate regime for the region, according to a new study. (2020-11-26)

New wheat and barley genomes will help feed the world
An international research collaboration, including scientists from the University of Adelaide's Waite Research Institute, has unlocked new genetic variation in wheat and barley - a major boost for the global effort in breeding higher-yielding wheat and barley varieties. (2020-11-25)

Electromagnetic imaging reveals freshwater cache off Hawai'ian coast
Pointing toward a much-needed future reservoir of freshwater for the island of Hawai'i in the face of climate-driven drought, electromagnetic images of the island have revealed multilayered basalt, ash and soil formations that serve as a previously unknown conduit to move freshwater offshore to the submarine flank of the island. (2020-11-25)

Climate change and 'atmospheric thirst' to increase fire danger and drought in NV and CA
Climate change and a ''thirsty atmosphere'' will bring more extreme wildfire danger and multi-year droughts to Nevada and California by the end of this century, according to new research from the Desert Research Institute (DRI), the Scripps Institution of Oceanography at the University of California, San Diego, and the University of California, Merced. (2020-11-19)

Predicting urban water needs
New Stanford research uses Zillow and census data combined with machine learning to identify residential water consumption based on housing characteristics. The approach could help cities better understand water use and design water-efficient communities. (2020-11-18)

Biological clock and extra gene pairs control important plant functions
New understanding of circadian rhythms could be key to stronger, drought-resistant crops in the face of climate change. (2020-11-05)

Archaeologists reveal human resilience in the face of climate change in ancient Turkey
An examination of two documented periods of climate change in the greater Middle East, between approximately 4,500 and 3,000 years ago, reveals local evidence of resilience and even of a flourishing ancient society despite the changes in climate seen in the larger region. The study demonstrates that human responses to climate change vary at the local level, and highlights how challenge and collapse in some areas were matched by resilience and opportunities elsewhere. (2020-10-29)

Expect more mega-droughts
Mega-droughts - droughts that last two decades or longer - are tipped to increase thanks to climate change, according to University of Queensland-led research. (2020-10-29)

Stanford researchers reveal US corn crop's growing sensitivity to drought
New management approaches and technology have allowed the US. Corn Belt to increase yields despite some changes in climate. However, soil sensitivity to drought has increased significantly, according to a new study that could help identify ways to reverse the trend. WATCH RELATED VIDEO: https://bit.ly/35rFgJ5 (2020-10-26)

Ancient lake contributed to past San Andreas fault ruptures
he San Andreas fault, which runs along the western coast of North America and crosses dense population centers like Los Angeles, California, is one of the most-studied faults in North America because of its significant hazard risk. Based on its roughly 150-year recurrence interval for magnitude 7.5 earthquakes and the fact that it's been over 300 years since that's happened, the southern San Andreas fault has long been called 'overdue' for such an earthquake. (2020-10-26)

Engineering drought-resistant crops with Crassulacean acid metabolism (CAM) photosynthesis
This work examines requirements for introducing CAM and alternative water-saving pathways into C3 plants in different environments. (2020-10-23)

Warm central equatorial pacific sea surface temperatures and anthropogenic warming boosted the 2019 severe drought in East China
A persistent severe drought occurred over East China along the Yangtze River in 2019 that lasted from August to October and caused large-scale negative impacts on lake water shortages and local agriculture. Results show that the central equatorial Pacific ENSO and anthropogenic warming were likely responsible for this drought event. (2020-10-14)

Human activity has made Murray estuary more vulnerable to drought
In drought prone Australia, it's largest river, the Murray is known to suffer acidification in its estuary in South Australia. For the first time a study has married geomorphology and environmental chemistry to gain a better understanding of how the lakes formed - and how they should be managed. (2020-10-14)

Thinning and prescribed fire treatments reduce tree mortality
Frequent fire once kept forests of California and throughout the western US relatively open but with a diversity of habitats preferred by a wide array of plant and animal species. After over a century of fire suppression, many such forests are now considerably denser, more homogeneous, and prone to disturbances such as stand-replacing wildfire and drought. (2020-10-14)

One-two punch
Drought is endemic to the American West along with heatwaves and intense wildfires. But scientists are only beginning to understand how the effects of multiple droughts can compound to affect forests differently than a single drought alone. (2020-10-12)

Atmospheric dust levels are rising in the Great Plains
A study finds that atmospheric dust levels are rising across the Great Plains at a rate of up to 5% per year. The trend of rising dust parallels expansion of cropland and even seasonal crop cycles. And if the Great Plains becomes drier, a possibility under climate change scenarios, then all the pieces are in place for a repeat of the Dust Bowl that devastated the Midwest in the 1930s. (2020-10-12)

The Colorado river's water supply is predictable owing to long-term ocean memory
A team of scientists at Utah State University has developed a new tool to forecast drought and water flow in the Colorado River several years in advance. Although the river's headwaters are in landlocked Wyoming and Colorado, water levels are linked to sea surface temperatures in parts of the Pacific and Atlantic oceans and the water's long-term ocean memory. ''Colorado River water supply is predictable on multi-year timescales owing to long-term ocean memory'' was published in Communications Earth and Environment. (2020-10-09)

Droughts are threatening global wetlands: new study
University of Adelaide scientists have shown how droughts are threatening the health of wetlands globally. Published in the journal Earth-Science Reviews, the scientists highlight the many physical and chemical changes occurring during droughts that lead to severe, and sometimes irreversible, drying of wetland soils. (2020-10-09)

Climate patterns linked in Amazon, North and South America, study shows
University of Arkansas researchers developed a tree-ring chronology from the Amazon River basin that established a link between climate patterns in the Amazon and the Americas. (2020-10-09)

Redefining drought in the US corn belt
As the climate trends warmer and drier, global food security increasingly hinges on crops' ability to withstand drought. But are scientists and producers focusing on the right metric when measuring crop-relevant drought? Not exactly, according to new research from University of Illinois scientists, who urge the scientific community to redefine the term. (2020-09-29)

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