| Environmental challenges colaterale (127) |  |
| Environmental challenges generale (362) | |
| Environmental challenges tendinte (2) | |
| Environmental challenges colaterale (127) | |
| Environmental challenges generale (362) | |
| Environmental challenges tendinte (2) | |
so that they no longer accumulate in the environment where they encourage the emergence of resistant bugs?
Not only could this innovation prevent accumulation of active antibiotics in the environment, but it might also help to reduce side effects.
But as we devise more and more ways to benefit from ever greater connectivity between the people, other living organisms, objects and our environments,
while eliminating the equivalent carbon emissions produced by vehicles driving approximately 2, 750,000 miles per year. Additional total power production and carbon offset estimates for skyscraper
Cleveland-based quasar energy group uses organic waste to produce a renewable energy source known as biogas which is converted then into Compressed natural gas (CNG) one of two fuels that can power the 2015 Chevrolet Bi-fuel Impala.
Biogas is the raw mixture of gases given off by the breakdown of organic materials kept in an oxygen-less environment.
Progressive Field home of the Cleveland indians contributes food waste for CNG-production after it been macerated in an industrial-sized Insinkerator Grind2energy garbage disposal.
while reducing greenhouse gas emissions everybody winssaid Mel Kurtz president of quasar energy group. uasar Columbus facility can produce 1. 3 million gasoline gallon equivalents of CNG each year. hat
Also CNG vehicles typically have 20 percent fewer greenhouse gas emissions than gasoline-powered cars according to the California Air Resources Board.
or in the planning stage. qng (quasar natural gas) is derived from the anaerobic digestion of regional organic waste streams
greater compared with the most prevalent greenhouse gas, carbon dioxide, over a 100-year period. For these reasons, methane and nitrous oxide detection is crucial to environmental considerations.
the team installed it on a mobile laboratory used during NASA DISCOVER-AQ campaign, which analyzed pollution on the ground and from the air last September.
Tittel says a smaller QEPAS device will be added this year to the mobile monitoring van currently carrying out a Rice university of Houston survey of pollutants in the city.
The innovation is a key enabler for smart cities, environmental and pollution monitoring, and effective disaster management, among many other applications.
From monitoring weather and pollution to empowering mart citiesof the future, wireless sensor networks promise to make our lives more comfortable, safer and more productive.
and contribute to electricity consumption and CO2 EMISSIONS, while battery-powered ones only last as long as their battery life.
But what if sensors could harness energy directly from their environment from the sun, from ambient heat, from radio waves or vibrations?
and in theory would operate perpetually with little or no maintenance or environmental impact. And that is precisely what a team of EU-funded researchers are achieving in the SWAP('Symbiotic Wireless Autonomous Powered system')project.
What is needed are networks of devices that can survive by scavenging the energy they need from the environment."
The researchers are also developing intelligent algorithms (small programs) to efficiently manage the energy obtained from the environment.
sensing technologies will allow the introduction of new services for citizens that will benefit quality of life, such as traffic and pollution monitoring,
They are vital to modern commerce but troublesome for the environment. European industrial researchers set out to turn these power-hungry machines into a green technology of the future.
This places a huge burden on power grids and the environment and does not appear to be slowing.
Game-changing green technology like this could have a direct impact on the EU 2020 commitment to reducing energy use and greenhouse gas emissions while improving overall energy security,
However, urbanisation, extensive irrigation and variations in rainfall patterns due to global climate change have led to serious water scarcity in many areas of the world.
Areas under increasing pressure from water scarcity, particularly in the summer months, include small cities and islands along the coasts of Spain, Greece and Italy
According to the European environment agency (EEA), 16 to 44 million additional people will suffer water scarcity in Southern Europe by 2070.
The EU has taken a leading role in tackling water scarcity both on a European and global scale.
the Refresh approach is more cost effective than using tanker ships where fresh water is priced around EUR 14/m3 or huge infrastructures, such as pipelines or desalination plants.
while CO2 EMISSIONS will be lower thanks to efficient transport options. e have received considerable interest from stakeholders in the Mediterranean and Persian gulf area,
Landslides and ground subsidence are serious problems across Europe and their costs are underestimated largely, according to Fausto Guzzetti of Italy National Research Council,
Examples include landslides riverbank erosion and melting permafrost; and the human contribution can arise from activities such as mining, large construction works or water extraction for irrigation.
representing a wide range of environments and types of ground deformation. They produced accurate deformation
slow-moving rock slides and ground subsidence owing to overexploitation of aquifers in Italy and Spain;
Demand for DORIS Landslides are natural events that shape landscapes. However, they come with a huge cost, both social and economic.
In Italy alone, landslides have caused over 5000 deaths and displaced more than 150 000 people during the last 50 years, at an estimated economic cost of#2 billion annually.
Thanks to the project, civil protection authorities and landslide investigators have access to information that was simply not available previously,
and waste treatments, such as incineration. In addition, because many of these materials are derived plastics from fossil fuels, they also increase the impact on climate change.
With the above in mind, a European research project has developed new environmentally friendly materials that can replace oil-based plastic films used in packaging for food
but have a much lower environmental impact. Flexpakrenew began in September 2008 and received#3. 28 million in funding under the EU's Seventh Research Framework Programme (FP7.
"We used life-cycle assessment techniques to look at the impacts on the environment throughout the production, use and disposal of the new materials.
The development of the new packaging products for a global market will make an important contribution towards the reduction of the dependency of the packaging sector on petroleum resources and the reduction of greenhouse gas emissions.
although climate change has made it more aggressive recently, Tóth says.""In Slovakia, in particular, many field plots are infested,
and each one is using slightly different plant's language to communicate with surrounding environment emitting more than 200 different volatile organic compounds,
Global agriculture wastes 60%,or 1 500 trillion litres, of the 2, 500 trillion litres of water it uses each year, according to the WWF.
The waste is mainly down to inefficient irrigation systems. But better managed, it could mean more water resources for other basics like drinking, hygiene and cooking.
while being flexible and robust enough to survive in farm environments, says John Olaherty, the technical director of Ireland Limerick-based National Microelectronics Applications Centre (MAC),
and storage (CCS) technology has the potential to help the European union (EU) significantly cut its greenhouse gas emissions.
However, efficient and reliable pre-combustion capture technologies that can reduce carbon dioxide (CO2 EMISSIONS from fossil fuel power plants at low cost are still missing.
helping achieve the EU 2020 target to reduce greenhouse gas emissions by 30%.%The new solutions developed by the DECARBIT team could also see the use of CCS technologies in other energy-intensive industries.
%which is better for people health and for the environment. The team initially tested the eave tubes in 2013 in large outdoor cages in Tanzania.
energy security and turning possibly a greenhouse gas into a useful resource. Researchers have demonstrated for the first time successfully the entire production chain for renewable kerosene,
This is because controlled experiments often involve inaccessible or hostile environments such as the combustion of hazardous waste.
These atural barriershave so far prevented scientists from gaining deeper knowledge that could be used to improve design and production processes.
Because biochar can be produced from various waste biomass including agricultural residues this new technology provides an alternative
#Iron-rich biochar filters arsenic from water Biochar may be a fast inexpensive and easy way to remove arsenic one of the world s most common pollutants from water.
and has been shown to cause cancer. ecause biochar can be produced from various waste biomass including agricultural residues this new technology provides an alternative and cost-effective way for arsenic removalsays Bin Gao associate professor of agricultural
#This fusion reactor could be cheaper than coal University of Washington Posted by Michelle Ma-Washington on October 16 2014fusion energy almost sounds too good to be true#zero greenhouse gas emissions no long-lived radioactive waste a nearly unlimited fuel supply.
or biochar to soil to both boost crop yields and counter global climate change the study offers the first detailed explanation for this mystery. nderstanding the controls on water movement through biochar-amended soils is critical
and reduced greenhouse gas emissionssays lead author Rebecca Barnes an assistant professor of environmental science at Colorado College who began the research as a postdoctoral research associate at Rice university.
and gardening buffs took off after archaeological studies found that biochar added to soils in the Amazon more than 1000 years ago was still improving the water-and nutrient-holding abilities of those poor soils today.
and temperature fluctuations happen around us all the time in the environment which could provide another source of energy for certain applicationssays Shwetak Patel associate professor of computer science and engineering and of electrical engineering at the University of Washington.
The hydrogen gas could power fuel cells in zero emissions vehicles. The battery sends an electric current through two electrodes that split liquid water into hydrogen and oxygen gas.
which emits carbon dioxide a greenhouse gas. Most of these vehicles will run on fuel manufactured at large industrial plants that produce hydrogen by combining very hot steam and natural gas an energy-intensive process that releases carbon dioxide as a byproduct.
Although touted as zero emissions vehicles most of the cars will run on hydrogen made from natural gas a fossil fuel that contributes to global warming.
Principal funding came from by the Global climate and Energy project the Precourt Institute for Energy at Stanford and by the US Department of energy.
and materials science at Michigan State university. t makes for a very colorful environment like working in a disco.
#Material snags CO2 from natural gas Rice university rightoriginal Studyposted by Mike Williams-Rice on June 9 2014scientists have created an Earth-friendly way to separate carbon dioxide a greenhouse gas from natural gas right
and this week set new rules to cut carbon pollution from the nation s power plants. ur technique allows one to specifically remove carbon dioxide at the source.
and pathogens that can have an environmental impact if not properly managed. While turning the manure into clean water makes environmental sense
It does this by extracting nutrients from the manure that can be harmful to the environment
#Small tuning fork lets device find greenhouse gas Scientists have created a highly sensitive portable sensor to test the air for the most damaging greenhouse gases.
greater compared with the most prevalent greenhouse gas, carbon dioxide, over a 100-year period. For these reasons, methane and nitrous oxide detection is crucial to environmental considerations.
the team installed it on a mobile laboratory used during NASA DISCOVER-AQ campaign, which analyzed pollution on the ground and from the air last September.
Tittel says a smaller QEPAS device will be added this year to the mobile monitoring van currently carrying out a Rice university of Houston survey of pollutants in the city.
and they don t function outside their natural environment whereas DNA-based motors are more stable and might be switched on and off Choi explains. e are in the very early stages of developing these kinds of synthetic molecular motorshe says.
or in the soil where it through a nanoporous membrane exchanges moisture with its environment and maintains an equilibrium pressure that the chip measures.
to produce electricity as they digest plant and animal waste. Scientists hope the icrobial batterycan be used in places such as sewage treatment plants
or to break down organic pollutants in the ead zonesof lakes and coastal waters where fertilizer runoff and other organic waste can deplete oxygen levels
and suffocate marine life. At the moment however the laboratory prototype is about the size of A d-cell battery
Inside that murky vial attached to the negative electrode bacteria feast on particles of organic waste
Scientists have known long of the existence of what they call exoelectrogenic microbesâ##organisms that evolved in airless environments
and protect the environment while enhancing yieldsshe says. e re on our way there. ource:
and minimizes the amount of excess fertilizer entering the environment. It estimated that the system could lead to a reduction in fertilizer use of up to 30 percent
which is exposed to different types of pollution from agrochemical residues to metals from leather tanneries.
They looked at technology feasibility, environmental impact, land use, manpower needs, energy payback, and estimated costs and confirmed the concept was##technically feasible with no new science
These small-scale agricultural operations require high humidity environments, and The Aquamist produced a water-replenishing environment to satisfy those needs.
A new breed of companies has begun to spring up around the world, looking to the skies to solve the world looming water issues.
The first unit was shipped to Abu dhabi for extended testing in the extreme weather conditions of the Middle east.
It works well for collecting water in virtually any environment even in polluted areas. About 12 gallons of fresh water can be extracted from air in a single day from one 300 sq ft unit.
but they have been dying at unprecedented rates because of a mysterious phenomenon known as colony collapse disorder (CCD). The situation is so dire that in late June the White house gave a new task force just 180 days to devise a coping strategy to protect bees and other pollinators.
and protect the health of the environment. Honeybees alone contribute more than $15 billion in value to U s. agricultural crops each year.
Last month, Greenpeace released a short video that imagines a future in which swarms of robotic bees have been deployed to save our planet after the real insects go extinct.
but in a way that is also sustainable and less harmful to the environment? There is an urgent need to develop new methods for sustainable food production.
Because of the clean environment, all plants will be germfree, which means theyl have longer shelf lives
and maintain and enhance human health and our environment. Scientifically viable in 2013; mainstream in 2023;
#Precision farming Gains Global Foothold (Op-Ed) Lloyd Treinish leads the environmental science team in the Industry Solutions Department at the IBM Thomas J. Watson Research center.
Michael Koenig, Honda Smart home project leader, said that converting DC to AC wastes energy, so this is a DC-based project.
of which produces five percent of global CO2 EMISSIONS), and certified lumber was used throughout. Over a year, the house is expected to generate a 2. 6-megawatt-hour surplus (compared to the average home consumption of 13.3 megawatts.
a large machine/small waste treatment plant developed by Janicki Bioenergy (an offshoot of Sedro-Woolley-based Janicki Industries)
The small amount of solid waste that comes out on the other end is no longer poop
Gates himself describes the waste-to-water process on his Gates Notes blog: I watched the piles of feces go up the conveyer belt and drop into a large bin.
that machine will be able to handle the waste of 100, 000 people and, from that, produce 86,000 liters of clean water on a daily basis while also generating a net 250 kilowatts of electricity.
"To manage the environmental impacts well we really need excellent information. Cindy Van Dover, director of the Duke university Marine Laboratory in Beaufort, North carolina, has worked on assessments of deep-sea mining impacts.
and designed to minimize greenhouse gas emissions. Pivac new company, Fastbrick Robotics, recently posted an animated video of Hadrian in action n
and a shoebox-size module (for base stations) based on nearly a decade of MIT research to essentially switch gears to adjust voltage supply to power amplifiers as needed cutting the waste.
And ultimately it could impact the environment: If all midsized carrier networks were to replace current radio amplifiers with Eta Devices technology he says the reduction in greenhouse gases would be equivalent to taking about 5 million cars off the road.
In addition to their potential for dangerous explosions, leaking gas pipes can be a significant contributor to global warming:
Methane, the primary constituent of natural gas, is a greenhouse gas 25 times more potent than carbon dioxide.
The company which aims to leverage biotechnology as a way to solve environmental issues is also modifying their system to generate value from wastewater in agricultural and military fields,
raising the cost of waste disposal and causing environmental harm. But a more cyclical approach where waste is used as an energy source could provide higher profit yields
and liminate the tension between the environment and economics, says CEO Matt Silver SM 5, Phd 0, who co-founded Cambrian with Justin Buck Phd 2,
now the company chief technology officer. he treatment of wastewater, for example, consumes over 3 percent of the electricity in the United states,
consume the wastewater remaining organic pollutants and, in the process, generate electricity. This electricity travels through a circuit and onto cathodes coated with separate microbes that consume that electricity
Treated wastewater exits the reactor with 80 to 90 percent of pollutants removed, so it can be used for irrigation, equipment washing,
At that rate, a winery would shave about 2 pounds of CO2 per case off of its carbon footprint
where aerobic microorganisms degrade pollutants consume a lot of energy and generate biosolids (organic materials) that are managed at cost.
Processes where anaerobic microbes eat pollutants, while producing small amounts of burnable methane, have gained popularity in the last few decades
and wastewater pollution is rising, causing many companies to consider water risk in their overall strategy.
is to leverage biotechnology to advance a sustainable ndustrial ecology, where the waste of industry is recycled to create energy
and value much like in natural ecosystems. n a natural ecosystem, there really is no such thing as waste,
Silver says. t just another resource. l
#Bionic plants Plants have many valuable functions: They provide food and fuel, release the oxygen that we breathe,
and give them completely new functions, such as monitoring environmental pollutants. In a new Nature Materials paper, the researchers report boosting plantsability to capture light energy by 30 percent by embedding carbon nanotubes in the chloroplast,
they survive in harsh environments, and they provide their own power source and water distribution.
an environmental pollutant produced by combustion. Strano lab has developed previously carbon nanotube sensors for many different chemicals,
the researchers hope to develop plants that could be used to monitor environmental pollution, pesticides, fungal infections, or exposure to bacterial toxins.
that can extract energy from the environment to recharge. Last week, at the Symposia on VLSI Technology And circuits, MIT researchers presented a new power converter chip that can harvest more than 80 percent of the energy trickling into it
#New study shows how nanoparticles can clean up environmental pollutants Many human-made pollutants in the environment resist degradation through natural processes,
Brandl says. hen we came up with the idea to use our particles to remove toxic chemicals, pollutants,
in a solution hydrophobic pollutant molecules move toward the hydrophobic nanoparticles, and adsorb onto their surface,
and now nrichedby the pollutants they form larger aggregates that can then be removed through filtration, sedimentation,
and molecules. he interactions we exploit to remove the pollutants are nonspecific, Brandl says. e can remove hormones, BPA,
and we can do this in one step. nd the nanoparticleshigh surface-area-to-volume ratio means that only a small amount is needed to remove a relatively large quantity of pollutants.
thus offer potential for the cost-effective cleanup of contaminated water and soil on a wider scale. rom the applied perspective,
as another example of a persistent pollutant that could potentially be remediated using these nanomaterials. nd for analytical applications where you don need as much volume to purify or concentrate,
which is the natural environment for lipid membranes. Previously, other research teams have focused on writing with lipids in air
but also carbon dioxide greenhouse gas byproduct which escapes into the atmosphere. Argonne's early-stage generator, composed of many tiny assemblies,
These toxic liquid solvents raise many issues for concern including environmental pollution, high cost of disposal, health problems and poisoning during the disposal process.
a free design for a high-tech beehive that can monitor your bees'environment and#a chance to contribute to citizen science.#
and environment They can not live on their own they are dependant in their immediate physiological functions on very specific stimuli and circumstances.
Guess what else could develop into a person given the right circumstances and environment: practically anything on the planet certainly sperm cells even skin cells (as this reseach so obviously shows.
Food waste from many Sainsbury's stores will get trucked to a central depot. One store doesn't make enough waste to power itself,
so running the Cannock Sainsbury's actually requires waste from several.)From the depot, a waste management company called Biffa will truck the waste to its Cannock plant.
What happens at Biffa's Cannock anaerobic digester is "what happens inside a cow's stomach after dinner,
It produces some solid and liquid wastes called the digestate. Some of the digestate can be used as fertilizer,
a greenhouse gas, help reduce global warming? The explanation is a bit academic, but we love you for asking.
or stick'em in a digestersn't always considered as contributing to global warming. That's because in the natural cycle of things, the next generation of plants should take up the carbon dioxide released by the previous generation of dead plants,
#Micromotors Could Help Reduce Ocean Pollution The buildup of carbon dioxide, a major greenhouse gas, is increasingly impacting oceans around the world, making waters more acidic and threatening sea life.
Nanoengineers at the University of California, San diego have made a splash in trying to overcome this obstacle.
and reused for future applications. f the micromotors can use the environment as fuel, they will be more scalable, environmentally friendly and less expensive, Kevin Kaufmann,
the team concludes online today in the Journal of Applied Ecology. And the insects proved superior to other pest control methods in four of the six studies that evaluated cost-effectiveness.
Digital imaging is expected to enable many emerging fields including wearable devices, sensor networks, smart environments, personalized medicine,
and a significant amount of waste is generated. Professor Kobayashi's application of flow chemistry techniques to the production of fine chemicals using heterogeneous catalysts has resulted in simple method to synthesize (R)
It is stable in the acidic stomach environment but dissolves in the small intestine near-neutral ph,
because it is both safe and stable in the stomach environment. raverso and Robert Langer,
longer battery life or lower power consumption in data centers to reduce their costs and greenhouse gas emissions, and ultra-sensitive and low-power biosensors and gas sensors to enhance the Internet of things.
Transport minister Andrew Jones says advanced biofuels have the potential to save at least 60%of the greenhouse gas emissions from equivalent fossil fuel.
Transport minister Andrew Jones says advanced biofuels have the potential to save at least 60%of the greenhouse gas emissions from equivalent fossil fuel.
advanced motion that underwater creatures use to function in their liquid environments. The microfish were manufactured with microscale continuous optical printing (COP), an advanced,
This simple and affordable alternative to ground-mounted systems is particularly suitable for water-intensive industries who cannot afford to waste either land or water.
fully recyclable, has low environmental impact and is cost effective. To date the system has been installed in the UK,
or in filters to remove chemicals or dyes from industrial waste. However, to be effective and safe,
and environmental concerns, said Nidia Trejo, a Cornell doctoral student in the field of fiber science.
Manufacturing methods vary depending on the liquid environments in which the membranes would be used. Adhering nanoparticles of iron oxide to nylon fiber is done in three ways:
you wouldn want the particles themselves to become pollutants if are they releasing from the membranes
To prevent pesticides from harming the environment Frey and her students have encapsulated pesticides into biodegradable nanofibers.
and preventing agricultural chemical release into the environment, these nanofibers just might save a life, she said.
#Novel Nano-Dispenser Systems Uses Less Insecticide to Kill Citrus Greening Bugs It is a step forward in ridding groves of the insect that is threatening to destroy Florida $10. 7 billion citrus industry.
Using insecticides is one of the few ways farmers currently have to treat their groves for greening, also known as Huanglongbing or HLB.
Citrus greening bacterium first enters the tree via the psyllid, which sucks on leaf sap and leaves behind greening bacteria.
Citrus greening was detected first in Florida in 2005. The citrus industry in Florida has lost approximately 100,000 citrus acres and $3. 6 billion in revenues since 2007, according to researchers with UF/IFAS.
Although current methods to control the spread of citrus greening are limited to the removal and destruction of infected trees and insecticide-based management of psyllid populations
Researchers also said that less insecticide could have beneficial environmental impacts. Further field tests are necessary to see how the nano-dispensers perform in sunlight
A similar concept powers the new missiles used by the Eurofighter Typhoon fighter plane, for instance. Ramjets can move a plane very fast.
and could be a contributing factor to global warming. And that effect could be worse than the current fleet of long-haul airliners the longer that water vapour remains."
"Lapcat-II also plans for their Mach 8 Esa-variant airliner to fly well above 33 km, hopefully minimising the environmental impact.
#New Nanoparticles Clean the Environment, Drinking water Nanoparticles are between 1 and 100 nanometers in size.
Now, researchers from MIT and the Federal University of Goias in Brazil have developed a new technique that uses ultraviolet (UV LIGHT to extract man-made pollutants from soil and water.
These pollutants, including pesticides and endocrine disruptors like bisphenol A, fight hard against natural degradation
or if it could be used by parts of the ecosystem to further minimize environmental impact. Bertrand nanoparticlesstill, even with the small amount of material released into the water
Some current techniques rely on chemical degradation of pollutants, which can potentially result in toxic by-products.
Work could also be done to improve the ability to remove increasing amounts of pollutants h
< Back - Next >
Overtext Web Module V3.0 Alpha
Copyright Semantic-Knowledge, 1994-2011