news 2013



Results 81 - 100 of 206.

Environment - Social Sciences - 01.08.2013
Cool heads likely won't prevail in a hotter, wetter world
Cool heads likely won't prevail in a hotter, wetter world
Cool heads likely won't prevail in a hotter, wetter world Posted August 1, 2013; 02:00 p.m. by Morgan Kelly, Office of Should climate change trigger the upsurge in heat and rainfall that scientists predict, people may face a threat just as perilous and volatile as extreme weather — each other.

Mechanical Engineering - Environment - 01.08.2013
Cleaning Solar Panels Often Not Worth the Cost, Engineers at UC San Diego Find
Don't hire someone to wash your dirty solar panels. That's the conclusion of a study recently conducted by a team of engineers at the University of California, San Diego. Their Researchers found panels that hadn't been cleaned, or rained on, for 145 days during a summer drought in California, lost only 7.4 percent of their efficiency.

Health - Environment - 24.07.2013
Introduced mosquito species active all year round
Introduced mosquito species active all year round
Australia has plenty of 'home grown' mosquitoes but one introduced species is active all year round, according to a three-year study by University of Sydney researchers. Its scientific name is Culex molestus but it is commonly known as the London Underground Mosquito. Dr Cameron Webb, from University's Department of Medical Entomology and Pathology West - ICPMR Westmead said the mosquito feasted on Londoners who took shelter in the underground train network during the bombings of the city in the 1940s.

Environment - 23.07.2013
Climate forecasts shown to warn of crop failures
The research showed that in about one-third of global cropland, temperature and soil moisture has a strong relationship to the yield of wheat and rice at harvest. And, for those two key crops, the model could predict crop failures three months in advance for about 20 per cent of global cropland, according to the study, published on 21 July .

Chemistry - Environment - 23.07.2013
Computer can infer rules of the forest
Computer can infer rules of the forest
A forest full of rabbits and foxes, a bubbling vat of chemical reactants, and complex biochemical circuitry within a cell are, to a computer, similar systems: Many scenarios can play out depending on a fixed set of rules and individual interactions that can't be precisely predicted - chemicals combining, genes triggering cascades of chemical pathways, or rabbits multiplying or getting eaten.

Environment - Earth Sciences - 16.07.2013
Global warming will raise sea levels for centuries
Global warming will raise sea levels for centuries
Greenhouse gases emitted today will cause sea level to rise for centuries to come. Each degree of global warming is likely to raise sea level by more than 2 meters in the future, a study now published in the Proceedings of the National Academy of Sciences shows. While thermal expansion of the ocean and melting mountain glaciers are the most important factors causing sea-level change today, the Greenland and Antarctic ice sheets will be the dominant contributors within the next two millennia, according to the findings.

Astronomy / Space Science - Environment - 14.07.2013
New study indicates need for continuous satellite monitoring of ice sheets to better predict sea-level rise
The length of the satellite record for the Greenland and Antarctic ice sheets is currently too short to tell if the recently reported speed-up of ice loss will be sustained in the future or if it results from natural processes, according to a new study led by Dr Bert Wouters from the University of Bristol.

Environment - 11.07.2013
Solar tsunami used to measure Sun's magnetic field
Solar tsunami used to measure Sun’s magnetic field
A solar tsunami observed by NASA's Solar Dynamics Observatory (SDO) and the Japanese Hinode spacecraft has been used to provide the first accurate estimates of the Sun's magnetic field. Solar tsunamis are produced by enormous explosions in the Sun's atmosphere called coronal mass ejections (CMEs). As the CME travels out into space, the tsunami travels across the Sun at speeds of up to 1000 kilometres per second.

Earth Sciences - Environment - 09.07.2013
Hazy days of summer: Southeast U.S. field work measures mercury, smog
Hazy days of summer: Southeast U.S. field work measures mercury, smog
Dozens of atmospheric scientists, including three University of Washington faculty members, are taking part in what's being described as one of the largest atmospheric field campaigns in decades. The six-week Southeast Atmosphere Study , through July 15, includes scientists from more than 30 different institutions.

Environment - 09.07.2013
Wildfires may contribute more to global warming than previously predicted
Wildfires may contribute more to global warming than previously predicted
They suggest that fire emissions could contribute a lot more to the observed climate warming than current estimates show. "The fact that we are experiencing more fires and that climate change may increase fire frequency underscores the need to include these specialized particles in the computer models, and our results show how this can be done," Dubey said.

Environment - Life Sciences - 04.07.2013
How greenhouse gases affect ocean's foodchain
How greenhouse gases affect ocean’s foodchain
Research by the University of Liverpool has found that climate change is affecting the tiny bacteria - cyanobacteria -  that form the foundation of the ocean's food chain. The study found that rising temperatures and levels of atmospheric carbon dioxide is leading to certain strains of nitrogen-fixing cyanobacteria being eliminated.

Economics / Business - Environment - 03.07.2013
New research suggests economic stagnation is no excuse for climate inaction
Policymakers should be paying more, rather than less, attention to tackling climate change in economically tough times, a new study suggests. As economies have stagnated major emitters of CO2 seem unwilling to accept binding emissions reduction targets. But findings, published this week in Nature Climate Change , show the social cost of carbon dioxide is higher in a low economic growth world.

Environment - 03.07.2013
Bat maps: The conservation crusade
Conservation efforts have taken an important step forward, thanks to observations of bats - creatures that make up a quarter of all of the UK's native mammal species. In a paper published today, researchers at the University of Leeds describe how they recorded the echolocation calls of more than 15,000 bats during 120 walks in the Lake District to create maps that show the suitability of areas for bat habitation.

Life Sciences - Environment - 02.07.2013
Creating the first genomic map for plants
What allows certain plants to survive freezing and thrive in the Canadian climate, while others are sensitive to the slightest drop in temperature? Those that flourish activate specific genes at just the right time — but the way gene activation is controlled remains poorly understood. A major step forward in understanding this process lies in a genomic map produced by an international consortium led by scientists from the University of Toronto and McGill University published online June 30 .

Environment - Life Sciences - 28.06.2013
Boat noise stops fish finding home
Boat noise disrupts orientation behaviour in larval coral reef fish, according to new research from the Universities of Bristol, Exeter and Liège. Reef fish are normally attracted by reef sound but the study, conducted in French Polynesia, found that fish are more likely to swim away from recordings of reefs when boat noise is added.

Environment - Earth Sciences - 27.06.2013
Humans play role in Australia’s "angry" hot summer
Rebecca Scott, University of Melbourne, Mobile 0417164791, Alvin Stone, ARC Centre of Excellence for Climate Systems Science, Mobile 0418 617 366, ? 'Peter Weiss, AGU Public Information Manager, Tel +1 (202) 777-7507 Human influences through global warming are likely to have played a role in Australia's recent "angry" hot summer, the hottest in Australia's observational record, new research has found.

Environment - Life Sciences - 21.06.2013
Researchers to focus on factors affecting forest regeneration
For decades, deer and forest management in Pennsylvania have operated primarily on the idea that managing white-tailed deer abundance will influence forest regeneration. However, indicators of deer browsing have declined in some management units, but regeneration is not improving - or not improving as quickly as expected.

Environment - Earth Sciences - 20.06.2013
We really do like to be beside the seaside, app confirms
We really do like to be beside the seaside, app confirms
We really do like to be beside the seaside, app confirms Spending time by the sea is one of the keys to happiness, according to a study that uses mobile technology to track people's wellbeing in different environments. The study was led by Dr George MacKerron , of the University of Sussex Department of Economics and LSE, and Professor Susana Mourato of LSE's Department of Geography and Environment.

Environment - Astronomy / Space Science - 19.06.2013
Earth Explorers take centre stage at Le Bourget
19 June 2013 ESA's new Biomass mission and the numerous accomplishments from the existing Earth Explorer satellites came into focus today at the Paris Air and Space Show. The recently selected Biomass satellite will measure the amount of biomass and carbon stored in the world's forests with greater accuracy than ever before.

Environment - Earth Sciences - 17.06.2013
Jet stream changes cause climatically exceptional Greenland Ice Sheet melt
Research from the University of Sheffield has shown that unusual changes in atmospheric jet stream circulation caused the exceptional surface melt of the Greenland Ice Sheet (GrIS) in summer 2012. An international team led by Professor Edward Hanna from the University of Sheffield's Department of Geography used a computer model simulation (called SnowModel) and satellite data to confirm a record surface melting of the GrIS for at least the last 50 years - when on 11 July 2012, more than 90 percent of the ice-sheet surface melted.