Archive for the ‘air quality’ Category

Stretchable Salt Could Unlock Secrets of Smog

A tiny block of salt exhibits stretchable properties observed with an interfacial force microscope.

It’s “not supposed to do that,” but it is: salt has revealed a previously undiscovered talent for stretching.  The startling revelation was made by researchers from Sandia National Laboratories and the University of Pittsburgh, using a powerful Interfacial Force Microscope.  The discovery of stretchable properties in salt could lead to the development of more efficient desalination technology, and it could also provide more insight into the potential for alternative fuels to contribute to smog formation.

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The Sky May Be Falling, But We Can Fix It

When it comes to environmental news, doom and gloom often rules the day. And it’s easy to get discouraged. But scientists from Yale University say most polluted ecosystems can recover in as little as 5 or 10 years.

The study means it’s not too late to turn things around if societies commit to cleanup, restoration and sustainability, according to Yale’s analysis of 240 independent studies. The findings appear in this month’s issue of the peer-reviewed journal PLoS ONE.
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Household Energy Use to Triple by 2030, Due to Power-Hungry Electronics

myuibe, via flickr.Experts call energy efficiency the low-hanging fruit, because it’s cheaper to cut power use than create new energy from fossil fuels like coal.

But our creature comforts — like iPods, cell phones, PCs and plasma TVs — are sucking the life out of advances in energy efficiency around the world, the International Energy Agency says.

In other words, too much fruit is rotting on the vine.

The IEA says in a new “Gigawatts and Gadgets” report that electricity consumption from power-hungry electronics could cause household energy use to triple by 2030. That means increased greenhouse gases from electric generation, and increased electric bills for creating that power. Read the rest of this entry »

DIY: How To Grow Your Own Fresh Air

According to GreenSpaces, these three plants not only lead to fresher indoor air…but also an increase in productivity!

GreenSpaces has tested these plants for the past 15 years in a 20 year old, 50,000 ft2 building with over 300 occupants, and 1,200 plants! A study published on September 8, 2008 found that there is a 42% probability of increasing blood oxygen by 1% if one is inside the building for 10 hours. In fact, the building is rated the healthiest building in Delhi by the Government of India. Read the rest of this entry »

News from the Microsoft Futurists: A Cool Montage and Video of Visions of Clean Technology in 2019

Microsoft presents it’s vision of the year 2019, and I’m so pleased to see some thinking on the green tech side, as I’ve tried to capture in the screen-stills below. Ten years is not too far out, and some of these ideas are fun. For example:

* Connected classrooms where learners share a lesson in natural systems
* Smart home energy monitoring
* Better ecological awareness (through cataloging and intuitive access)
* Urban green roofs


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New Generation of Intel Devices Can Measure Air Pollution, “Scavenge” Energy from the Environment

Intel has unveiled a new generation of tiny sensors that continuously analyze air quality in an effort to further understand and combat air pollution. The corporation also announced on Friday that it is developing devices that can tap energy from sunlight, body heat and television signals.
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Asthma Inhalers Scheduled to Go Green, Become More Expensive

inhaler

Come December 31, all albuterol inhalers in the U.S. will be a little bit greener— and a lot more expensive. The inhalers will stop using chlorofluorocarbons (CFCs) that damage the ozone layer, and will be powered by hydroflueroalkane (HFC) instead. While the new inhalers will benefit the environment, they will also cost $30 to $60. CFC inhalers cost only $5 to $10.
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Traffic Pollution Sensors Getting a Trial Run in the UK

Have you ever wondered how many pollutants you’re breathing in while sitting in traffic sandwiched between two trucks? The Mobile Environmental Sensing System Across a Grid Environment (MESSAGE) can tell you. The system, designed by researchers at Newcastle University, produces real-time data on traffic pollutants including carbon dioxide, nitrogen dioxide, and noise.
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Exelon Progressing Toward 3,000 MW of Emission-Free Nuclear Power in Texas

Exelon, the largest operator of nuclear power plants in the United States has filed a license application with the US Nuclear Regulatory Commission (US-NRC) to build two new nuclear power plants near Victoria, Texas. When operating, the plants will produce zero units of carbon dioxide, nitrogen oxides, mercury, sulfur oxides, and fly ash.

Exelon has chosen the Economic Simplified Boiling Water Reactor (ESBWR) marketed by GE-Hitachi Nuclear Energy. Each of the reactors will produce approximately 1,500 MW of electric power.

One of the key design features of the ESBWR is a large degree of passive safety provided by large water reservoirs, natural coolant circulation and safety systems that operate without any electrical power. (Link to animation of ESBWR safety system operation)
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Medieval Churches: Solar-Powered Nanotech Pioneers

stained glass

As I recently discussed, sometimes we need to look to the past for solutions to our current problems. Queensland University professor Zhu Huai Yong has done just that, noting that painting glass windows with gold particles can purify the air.

Zhu came across this realization after studying medieval painted church windows, which were often decorated using glass colored with gold nanoparticles.

Though people likely did not realize it at the time the churches were built, the sun-energized nanoparticles destroy air-borne pollutants, as sunlight creates an electromagnetic field that resonates with the gold particles’ oscillations.
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