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Results 41 - 60 of 89.


Environment - 20.03.2020
The right dose of geoengineering could reduce climate change risks
The right dose of geoengineering could reduce climate change risks
Injecting the right dose of sulphur dioxide into Earth's upper atmosphere to thicken the layer of light reflecting aerosol particles artificially could reduce the effects of climate change overall, according to UCL and Harvard researchers. Stratospheric aerosol geoengineering is the idea that adding a layer of aerosol particles to the upper atmosphere can reduce climate changes caused by greenhouse gases such as carbon dioxide.

Environment - Chemistry - 18.03.2020
Common treatments used on cattle have devastating impacts on wildlife
Common treatments used on cattle have devastating impacts on wildlife
Experts have stressed an urgent need to find alternatives to wormers and anti-ectoparasitic products used widely on cattle, following the findings of a study just published in Environmental Toxicology and Chemistry. Researchers from the University of Sussex looked at a body of published evidence into the environmental impact of anthelmintics — products used as wormers and anti-parasitic agents and widely applied across the world.

Environment - 12.03.2020
Australia's bushfires 'made 30% more likely by climate change'
Australia’s bushfires ’made 30% more likely by climate change’
Study explores role of human induced climate change in the 2019-2020 South-Eastern Australian bushfire season. The World Weather Attribution (WWA) initiative has released the  first analysis  of the role climate change played in the 2019/2020 bushfire season in South-Eastern Australia, which showed that the risk of intense fire weather has increased by 30% since 1900 as a result of anthropogenic climate change.

Astronomy / Space Science - Environment - 11.03.2020
Evolutionary elements arrived on Earth much later than thought, say scientists
An international team of geologists, led by scientists at the University of Cologne and including an academic from Cardiff University, say that a large proportion of the elements carbon and nitrogen, as well as the compound water, were not delivered to Earth until very late in the planet's formation.

Environment - 10.03.2020
Coral fossils reveal how changing wind patterns affect ocean circulation and CO2
Coral fossils reveal how changing wind patterns affect ocean circulation and CO2
Coral skeletons from the Southern Ocean have revealed how changes in wind patterns affect worldwide ocean circulation and atmospheric CO2 levels. The findings show that wind patterns have a larger impact on oceans than previously thought and could provide new insights into the future changes that could arise from global warming.

Environment - Life Sciences - 05.03.2020
Global plan to protect endangered species ’overlooks genetic diversity’
A global group of scientists are calling for an urgent rethink on a draft action plan to safeguard biodiversity. The provisional action plan , unveiled in January, will form the basis of a 10-year plan to protect nature. But in a letter published today in Science , experts - including scientists from Cardiff University's School of Biosciences and Sustainable Places Research Institute - warn the suggested targets are not broad enough.

Environment - 04.03.2020
Tropical forests’ carbon sink is already rapidly weakening
The ability of the world's tropical forests to remove carbon from the atmosphere is decreasing, according to a study tracking 300,000 trees over 30 years, published today in Nature. The global scientific collaboration , led by the University of Leeds, reveals that a feared switch of the world's undisturbed tropical forests from a carbon sink to a carbon source has begun.

Earth Sciences - Environment - 02.03.2020
Ocean changes almost starved life of oxygen
Chemical changes in the oceans more than 800 million years ago almost destroyed the oxygen-rich atmosphere that paved the way for complex life on Earth, finds new research involving UCL scientists. Then, as now, the planet had an oxidising atmosphere driven by phytoplankton, which release oxygen during photosynthesis.

Environment - Earth Sciences - 27.02.2020
Turning back the clock on blue carbon tolls a warning bell for the environment
A new study of a Scottish sea loch which reconstructs 5,000 years of its climate history is casting doubt on hopes that 'blue carbon' could help slow the rate of global heating. http://media.gla.ac.uk/web/news/campusenews/bluecarbon.mp4 'Blue carbon' is the term used to describe atmospheric carbon which has been captured by underwater vegetation and stored under the sea bed.

Astronomy / Space Science - Environment - 27.02.2020
Large exoplanet could have the right conditions for life
Large exoplanet could have the right conditions for life
Astronomers have found an exoplanet more than twice the size of Earth to be potentially habitable, opening the search for life to planets significantly larger than Earth but smaller than Neptune.

Environment - Life Sciences - 24.02.2020
Shows how glacier algae creates dark zone at the margins of the Greenland Ice Sheet
Shows how glacier algae creates dark zone at the margins of the Greenland Ice Sheet
New research led by scientists from the University of Bristol has revealed new insights into how the microscopic algae that thrives along the edge of the Greenland Ice Sheet causes widespread darkening. This darkening is critically important as darker ice absorbs more sunlight energy and melts faster, accelerating the overall melting of the ice, which is the single largest contributor to global sea level rises.

Environment - Life Sciences - 21.02.2020
Himalayan wolf discovered to be a unique wolf adapted to harsh high altitude life
Himalayan wolf discovered to be a unique wolf adapted to harsh high altitude life
Researchers from the University of Oxford have discovered that the Himalayan wolf is a unique wolf characteristically adapted to the harsh life in the Asian high altitudes where low oxygen levels challenge all life forms. The Himalayan wolf is considered an ancient wolf as it evolved prior to the contemporary grey wolf which is found in large parts of North America and Eurasia.

Environment - Transport - 19.02.2020
Researchers advise county council on net zero policy actions
A team of early-career researchers from the University of Cambridge are working with the county council to identify the best ways for Cambridgeshire to reach net zero emissions.

Agronomy / Food Science - Environment - 19.02.2020
Gone with the wind - extreme weather poses threat to honey bees as wind reduces efficiency of foraging
High wind speeds can significantly reduce the efficiency of a honey bee's search for food, according to a new research paper published this week. Experts at the University of Sussex found that the foraging rate of honey bees significantly decreased in higher wind speeds due to increased hesitancy to take off.

Environment - 17.02.2020
Mediterranean rainfall immediately affected by greenhouse gas changes
Mediterranean-type climates face immediate drops in rainfall when greenhouse gases rise, but this could be stopped quickly if emissions are cut. This is the finding of new research published today in Proceedings of the National Academy of Sciences , which adds to the list of known benefits of rapidly reducing greenhouse gas emissions to keep global heating below 1.5°C.

Environment - Health - 17.02.2020
To provide new insights into health impact of urban pollution
To provide new insights into health impact of urban pollution
Londoners equipped with wearable sensors will help researchers understand the effects of air pollution on personal health in real time. Air pollution is one of the world's greatest environmental threats, responsible for an estimated 7 million deaths every year. A new study, led by Imperial College London with partners at the University of Surrey and the University of Edinburgh, will provide the most detailed account yet of the specific personal health consequences of exposure to different air pollutants in urban environments.

Environment - Life Sciences - 17.02.2020
Freshwater insects recover while spiders decline in UK
Many insects, mosses and lichens in the UK are bucking the trend of biodiversity loss, according to a comprehensive analysis of over 5,000 species led by UCL and the UK Centre for Ecology & Hydrology (UKCEH). The researchers say their findings on UK biodiversity between 1970 and 2015, published in Nature Ecology & Evolution , may provide evidence that efforts to improve air and water quality could be paying off.

Life Sciences - Environment - 13.02.2020
For bacteria, your community determines whether you evolve or not
For bacteria, your community determines whether you evolve or not
A study of puddles has shown that bacteria evolve and adapt differently depending on the make-up of the community of bacteria they live within. The findings could have implications for better understanding how bacteria evolve resistance to antibiotics, or for modelling how beneficial communities of bacteria are likely to respond to environmental changes and global heating.

Environment - Transport - 12.02.2020
Small altitude changes could cut contrail impact of flights by up to 59 per cent
Altering the altitudes of less than two per cent of flights could reduce contrail-linked climate change by 59 per cent, says a new Imperial study. This new method could very quickly help to reduce the overall climate impact of the aviation industry. Dr Marc Stettler Department of Civil and Environmental Engineering Aircraft contrails - the white streaks aircraft leave in the sky - could be as bad for the climate as their carbon dioxide (CO2) emissions.

Environment - Transport - 12.02.2020
Small altitude changes could cut climate impact of aircraft by up to 59 per cent
Altering the altitudes of less than two per cent of flights could reduce contrail-linked climate change by 59 per cent, says a new Imperial study. Aircraft contrails - the white streaks aircraft leave in the sky - could be as bad for the climate as their carbon dioxide (CO2) emissions. Now, Imperial College London-led research has found that flight altitude changes of just 2,000 feet could lessen their effect.

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