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Results 101 - 120 of 647.


Environment - Chemistry - 04.11.2019
Homing in on pyrethroids
Homing in on pyrethroids
Very low concentrations of pyrethroid and organophosphate insecticides are effective in controlling pests on crops such as oilseed rape. However, if they enter surface waters, they also pose a high risk to aquatic organisms. In water quality monitoring, they have so far slipped through the net, since not only sample collection but also analytical procedures have to be specifically tailored to these compounds.

Environment - 01.11.2019
Palestinian farmers benefit from Birmingham water technology project
Palestinian farmers benefit from Birmingham water technology project
University of Birmingham scientists have worked with international students to produce prototype desalination equipment that could help Palestinian farmers avoid water shortages and grow crops efficiently. The equipment is built from off-the-shelf parts and could be deployed easily and relatively cheaply across the Middle East.

Astronomy / Space Science - Environment - 01.11.2019
A bird in the nest and moving to Mars: News from the College
Here's a batch of fresh news and announcements from across Imperial. From bird-chick recognition, to Mars explorations, here is some quick-read news from across the College. A bird in the nest Passerine (or ‘perching') birds do not differentiate between the chicks in their nest - meaning they potentially raise chicks that aren't theirs, such as those that are the product of a cheating partner.

Environment - Earth Sciences - 01.11.2019
Rice yields plummet and arsenic rises in future climate-soil scenarios
Research combining future climate conditions and arsenic-induced soil stresses predicts rice yields could decline about 40 percent by 2100, a loss that would impact about 2 billion people dependent on the global crop. Rice is the largest global staple crop, consumed by more than half the world's population - but new experiments from Stanford University suggest that with climate change, production in major rice-growing regions with endemic soil arsenic will undergo a dramatic decline and jeopardize critical food supplies.

Environment - 30.10.2019
Intact forest loss ’six times worse’ for climate
The impact of losing intact tropical forests is more devastating on the climate than previously thought, according to University of Queensland-led research. The international study has revealed between 2000 and 2013 the clearance of intact tropical forests resulted in a much higher level of carbon being emitted to the atmosphere than first believed - resulting in a 626 per cent increase in the calculated impact on climate.

Earth Sciences - Environment - 30.10.2019
Climate models and geology reveal new insights into the East Asian monsoon
Climate models and geology reveal new insights into the East Asian monsoon
A team of scientists, led by the University of Bristol, have used climate models and geological records to better understand changes in the East Asian monsoon over long geologic time scales. Their findings, published today in the journal Science Advances , suggest that the monsoon system's development was more sensitive to changes in geography (especially mountain height) rather than carbon dioxide, and that the monsoon came into existence around 40 million years earlier than previously thought.

Environment - Life Sciences - 30.10.2019
Insect decline more extensive than suspected
Insect decline more extensive than suspected
Compared to a decade ago, today the number of insect species on many areas has decreased by about one third. This is the result of a survey of an international research team led by scientists from the Technical University of Munich (TUM). The loss of species mainly affects grasslands in the vicinity of intensively farmed land - but also applies to forests and protected areas.

Environment - Life Sciences - 29.10.2019
Macaques’ stone tool use varies despite same environment
Stone tool use develops differently within species of Old World monkeys in spite of shared environmental and ecological settings, according to a new study involving UCL. Macaques are the only Old World monkeys that have been observed using percussive stone tools and scientists do not know for certain how or why certain groups have developed this behaviour.

Chemistry - Environment - 29.10.2019
New hydrogen production method could support sustainable fuel creation
A new method of extracting hydrogen from water more efficiently could help underpin the capture of renewable energy in the form of sustainable fuel, scientists say. In a new paper, published today , researchers from universities in the UK, Portugal, Germany and Hungary describe how pulsing electric current through a layered catalyst has allowed them to almost double the amount of hydrogen produced per millivolt of electricity used during the process.

Life Sciences - Environment - 29.10.2019
'DNA time capsule' reveals birthplace of modern humans
’DNA time capsule’ reveals birthplace of modern humans
A landmark study led by Sydney researchers pinpoints the birthplace of modern humans in southern Africa and suggests how climate change may have driven the first migrations. A Sydney-led study has found that the earliest ancestors of anatomically modern humans ( Homo sapiens sapiens ) emerged in a southern African 'homeland' and thrived there for 70 thousand years.

Environment - 29.10.2019
Abrupt shifts in Arctic climate projected
Channels McGill University News and Events Researchers from McGill University project that as the permafrost continues to degrade, the climate in various regions of the Arctic could potentially change abruptly, in the relatively near future. Their research, which was published today in Nature Climate Change , also suggests that as the permafrost degrades, the severity of wildfires will double from one year to the next and remain at the new and higher rate for regions in the Northwestern Territories and the Yukon.

Environment - Earth Sciences - 28.10.2019
Antarctic sea ice is key to triggering ice ages
We've known for years that Earth's climate is like a giant Rube Goldberg machine: Pull one lever, and a massive chain of events starts into motion. Yet many of the steps that drive these changes have remained shrouded in uncertainty. "One key question in the field is still what caused the Earth to periodically cycle in and out of ice ages," said Asst.

Health - Environment - 28.10.2019
Precision mapping with satellite, drone photos could help predict infections of a widespread tropical disease
A drone image showing a village in northwestern Senegal and agricultural land, separated by a river with lush vegetation. Researchers use rigorous field sampling and aerial images to precisely map communities that are at greatest risk for schistosomiasis infection. Andrew Chamberlin/Stanford University Satellite images, drone photos and even Google Earth could help identify communities most at risk for getting one of the world's worst tropical diseases.

Environment - Earth Sciences - 25.10.2019
Mountain streams emit a surprising amount of CO2
Mountain streams emit a surprising amount of CO2
For the first time, an EPFL-led team of scientists has measured the total amount of CO2 emissions from mountain streams worldwide. This research builds on findings issued in February 2019 and shows how important it is to include mountain streams in assessments of the global carbon cycle. Mountains cover 25% of the Earth's surface, and the streams draining these mountains account for more than a third of the global runoff.

Environment - Earth Sciences - 25.10.2019
Climate change is affecting the way Europe floods, experts warn
Climate change is disrupting the rhythms of spring growing and river flooding across Europe, which could pose new problems for biodiversity and food security in floodplains, scientists say. New analysis of five decades of European flood and temperature data, published in the journal Geophysical Research Letters, demonstrates for the first time an increasing overlap between the onset of spring and the highest points of seasonal flooding.

Environment - 25.10.2019
High pesticide concentrations continue to enter Great Barrier Reef
The combined toxicity of 22 of the most common pesticides found in waterways flowing into the Great Barrier Reef is in many cases not meeting pollution reduction targets. University of Queensland researchers, along with the Queensland Department of Environment and Science, reached the conclusion after devising a new method to estimate the percentage of species protected in waterways that discharge to the Great Barrier Reef.

Environment - Health - 24.10.2019
The Effects of the Scorching Summer of 2018 on Health
The Effects of the Scorching Summer of 2018 on Health
The Swiss Tropical and Public Health Institute (Swiss TPH) analysed the health consequences of the hot and dry summer of 2018 for the Federal Office for the Environment (FOEN). The results were published today in the report "Heat and Drought in Summer 2018 - Effects on Humans and the Environment". The report shows that heat and drought had negative impacts on human health, forests, agriculture, water and glaciers.

Environment - 24.10.2019
Engineers develop a new way to remove carbon dioxide from air
Engineers develop a new way to remove carbon dioxide from air
The process could work on the gas at any concentrations, from power plant emissions to open air. "From power plant emissions to open air, this new tool could prove significant in the fight against climate change," reports Bloomberg. "It's significantly less energy-intensive than existing methods and comes at a lower cost."

Astronomy / Space Science - Environment - 22.10.2019
KU Leuven researchers use satellite data to calculate snow depth in mountain ranges
Bioscience engineers at KU Leuven have developed a method to measure the snow depth in all mountain ranges in the Northern Hemisphere using satellites. This technique makes it possible to study areas that cannot be accessed for local measurements, such as the Himalayas. The findings were published .

Environment - 21.10.2019
Fossil fuel industry misled the public about climate change
An international group of scientists has shown that fossil fuel corporations have, for decades, denied the public's right to be accurately informed about climate change by funding efforts to deceive people about the dangers of their product. A report illustrating how the industry "polluted the information landscape" and how the damage could be undone is published today [Monday 21 October].

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