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Pollution

The CitiSense sensor provides smartphone users with real-time air quality readings for the...

Air quality is one of those things that many of us should be more concerned about, but aren’t. According to some people, this is because we’re not easily able to know how clean the air around us really is – we just assume it’s “clean enough.” Computer scientists at the University of California, San Diego have set out to change that. They’re developing a compact, portable air pollution sensor that communicates with the user’s smartphone, to provide real-time air quality readings for their immediate surroundings.  Read More

Onion and garlic waste might be utilized to mop-up heavy metal pollutants (Photo: Shutters...

They may taste great on a pizza, but could onions and garlic be used to help clean up hazardous heavy metals? Research conducted at GGS Indraprastha University in Delhi, India, suggests this is indeed the case.  Read More

Edmonton International Airports Living Wall

Edmonton International Airports Living Wall has been greeting passengers now since May of this year and continues the success of Vancouver based design company Green over Grey in the trend of living vertical installations. The 1,420 square feet (132 sq m) vertical canvas consists of over 8000 plants and includes several species identified by NASA as being more efficient than mechanical filters at purifying the air of toxins.  Read More

Hestia is a software system that shows building-by-building CO2 emissions

As the old adage goes, knowledge is power. Following this principle, Arizona State University researchers have developed a computer program called Hestia, that is capable of estimating the greenhouse gas emissions of specific roads and even buildings. With its high level level of detail and accuracy, the software can help cities make more precise calculations about their GHG footprint as well as more informed decisions related to carbon mitigation efforts.  Read More

A newly-developed polymer might find use in the clean-up of oil spills  (Photo: Shuttersto...

As the Deepwater Horizon disaster showed us, we need to develop better ways of cleaning up oil spills. While many ideas have been put forth, scientists from Pennsylvania State University have come up with something that particularly shows promise – a polymer that soaks up 40 times its weight in oil.  Read More

Clothing treated with the CatClo laundry additive can remove nitrogen oxides from the air

A laundry additive created by researchers from the University of Sheffield and the London College of Fashion turns clothing into a photocatalytic material that can help remove nitrogen oxides (NOx) from the air. One of the most prominent air pollutants, nitrogen oxides are emitted from the exhausts of ICE-powered vehicles and aggravate asthma and other respiratory diseases. The researchers claim one person getting around town in clothing treated with the additive for a day would be able to remove roughly the same amount of nitrogen oxides produced by the average family car each day.  Read More

Drought bites deeply – this year's corn crop in Missouri Valley, Iowa (Photo: USDA and Dav...

Recently, drought seems to be a fact of life. As the lead photograph poignantly illustrates, most of the U.S. has been struggling with serious levels of drought for the past several years. Worldwide, drought affected areas include Europe, India and Pakistan, Russia, much of Africa, South America – the list goes on. But when the rains start again, everyone expresses great relief, not realizing that long-term depletion of groundwater reserves is part of the price for surviving drought. It was with this in mind that GRACE (Gravity Recovery and Climate Experiment), a joint U.S. and German space project, was designed a decade ago.  Read More

The oil and water separation technique uses permanent magnets immersed in a reservoir cont...

Possibly the only good thing to come out of the Deepwater Horizon disaster is the subsequent increase in research into finding more effective ways to clean up oil spills, including such initiatives as the X PRIZE Foundation's Wendy Schmidt Oil Cleanup X CHALLENGE. Joining the list is a new method devised by researchers at MIT who propose separating oil and water using magnets. The new technique would allow the oil to be recovered to help offset the costs of the cleanup operation.  Read More

The tiny hairs on the 'nano-velcro' particles trap heavy metal ions in their grasp allowin...

While progress has been made in reducing the amount of heavy metal pollution, the very nature of heavy metal contamination means it continues to be a problem in waterways around the world. Conventional heavy metal contamination detection methods require sending samples off to a lab for analysis on expensive equipment. Now a Swiss-American team has developed a cheap way to immediately ascertain the levels of heavy metals in lakes and rivers and the fish pulled out of them.  Read More

A new additive based on glycerol helps reduce pollution in marine bunker fuel used in crui...

The bunker fuel used in cruise liners and freighters is some of the cheapest, crudest fuel available. It’s also among the dirtiest. Scientists from the Maine Maritime Academy and SeaChange Group LLC led by George N. Harakas, Ph.D announced at the 244th National Meeting & Exposition of the American Chemical Society that they have developed what they call "Bunker Green" fuel. This fuel uses an ingredient commonly used in food and medicine to reduce sulfur and other emissions in ocean vessels.  Read More

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