Sunday, 23 March 2014

Going Green - Eco friendly Schools


Going Green: Designing Eco-Friendly Schools

In Chicago's urban sprawl, an environmentally friendly school blooms.

green architecture

Top Soil:


On the third-story roof of Tarkington Elementary School, in Chicago, a garden of drought-resistant plants serves as a teaching tool -- and provides energy-saving insulation.

Credit: JJ Sulin Photography
Clad in a tailored gray suit and heels instead of her typical garb of jeans, steel-toed boots, and a hard hat, Julie Chamlin begins her tour of Tarkington Elementary School in the airy atrium. The loftlike space exudes a squeaky-clean feel, with its scuff-free floors and unsmudged windows. The morning sun floods the room with warmth.
As project manager of this newly opened K-8 school on Chicago's Southwest Side, Chamlin -- whose job includes making sure that the three-story, 134,000-square-foot building meets certain environmental standards -- quickly highlights the entryway's so-called green features: understated bluish-green floors made of recycled glass, elegant two-story-high windows that allow for natural lighting, and honeycolored maple ceilings made from wood logged in what she refers to as an "environmentally responsible" way (read: no clear-cutting).
These are just a few of the design elements that give Tarkington its bragging rights. It's the first campus in the Chicago Public Schools (CPS), the nation's third-largest school district, built to meet the stringent green standards established by the nonprofit U.S. Green Building Council, a coalition of 6,000 building-industry organizations that is considered the standard-bearer of greenness. Tarkington will also serve as a prototype for future Chicago public schools, which CPS officials say are all required to be green.
green architecture

Bright Ideas:


Oversize windows and scuff-proof reflective floors made of recycled glass, plus a sensor system to reduce the need for artificial light, reduce the school's power use.

Credit: JJ Sulin Photography
Earning the USGBC's seal of approval, known as LEED (Leadership in Energy and Environmental Design) certification -- which Tarkington expects to officially receive soon -- requires looking at the building process through a different lens.
"It's like baking an oat-bran bagel instead of one with white flour," says Erin Lavin Cabonargi, managing architect for CPS's Department of Operations. (Previously, she worked at OWP/P Architects, the Chicago firm that handled the school's initial design phase.) "You're using the same recipe, only now the ingredients are organic."
And, just as any vegan will tell you, a healthy diet doesn't sacrifice taste. By borrowing from the Chicago palette of rich, durable materials, such as limestone and brick, and incorporating stainless steel hardware and oversize windows, Tarkington projects a rare combination of Midwestern heartiness and urban hip.
"A school is the anchor of the community," says Cabonargi. "Students need to think of it as a place of permanence. The architecture is a manifestation of that permanence."
green architecture

Going Native:


Many of the building's construction materials, which come from within a 500-mile radius of the city, echo the Chicago palette.

Credit: JJ Sulin Photography

Fueling Curriculum

But schools are more than eye-pleasing assemblages. Beyond making school an aesthetically vibrant and environmentally friendly place, the ultimate goal of those involved with Tarkington, from the builders to the teaching staff, is to instill in students a sense of wonder as well as one of responsibility for their natural environment.
"Curriculum is key," Cabonargi says. "If we can teach students about sustainability, that's the highest praise we could possibly hope for."
Vincent Iturralde, Tarkington's principal, concurs. As a former science teacher, he is particularly excited by how having a green school shapes curriculum and consequently generates an interest in science among the facility's 900-plus students.
Enter Steven Cota, a charismatic science specialist, who with his thirty fellow teachers designs a green curriculum for all grade levels. At Tarkington, teaching science entails a collaborative effort between him and his colleagues. Instead of sending students off to science lab, teachers accompany their classes and team-teach the subject with Cota.
With an abundance of enthusiasm and ideas, he explains how a green school provides fertile ground for his hands-on teaching style. "To raise students' awareness, there must be a physical engagement," he says. "Teachers must make students aware of a reality they're not used to seeing."
green architecture

Gym Dandy:


A point of pride for the elementary school kids is the regulation-size gymnasium, roomy enough for high school students.

Credit: JJ Sulin Photography
So, for instance, Cota encourages kids to see garbage in a new way by teaching a lesson on recycling. He might ask kids to keep all the garbage they generate at a picnic and consider the following: "What does trash look like? What are recyclable materials?" Kids get their hands dirty, so to speak, by separating the two. In one class, Cota created a math lesson by having students display their collective picnic garbage and multiply that amount by seven days.
Similarly, when Tarkington's solar panels are installed on the rooftop, Cota will teach students about alternative energy sources. Likewise, someday, when he has access to an electric car, he'll use the recharging stations already installed in the school's parking lot for hands-on demos.
Peter Templeton, the USGBC's vice president for education and research, considers the indoor environmental quality at schools their most important green feature: "We want to create the optimum environment for learning, one that ensures students can concentrate and be free from distractions."
These include indoor pollutants such as mold, bad air quality and circulation, which often cause drowsiness, and inadequate lighting, known to hamper learning by diminishing a child's ability to concentrate. Also, Tarkington's indoor air quality adheres to a higher standard because of the building's low-toxic paint, glues, and caulking.
In addition, classrooms contain extra-large windows that allow more natural light. Not only that, but sensors incorporated into the lighting system automatically adjust to the amount of sunlight entering the room, thus maximizing the use of natural energy.
green architecture

Lofty Goals:


The maple ceilings are made using wood logged in environmentally responsible ways.
Credit: JJ Sulin Photography

The Windy City and Beyond

Tarkington is not the only school that, well, has seen the light when it comes to going green. In November 2002, Goodwillie Environmental School, in Ada Township, Michigan, and Third Creek Elementary School, in Statesville, North Carolina, both suburban public schools, became the first LEED-certified educational facilities. Since then, 14 others located from Massachusetts to Oregon have followed suit. Now, 145 K-12 schools are registered to earn the green seal of approval. Most, like the pioneering schools in Michigan and North Carolina, are in the suburbs, where construction of new buildings is more likely. That's what makes Tarkington -- located in an urban neighborhood with its fair share of fast food joints and convenience stores -- all the more unique and meaningful.
"To have a school like this built here on the South Side is fantastic," says Tarkington principal Iturralde. "It offers lots of possibilities to kids who really need it in this area."
green architecture

In Her Element:


Project manager Julie Chamlin is in charge of making sure the 134,000-square-foot school meets the stringent standards of the nonprofit U.S. Green Building Council.

Credit: JJ Sulin Photography

A Crowning Jewel

While green features exist throughout the building, the crowning green jewel of Tarkington rests atop its third story. Here, a roof garden of plants from the tundra (ever been to Chicago in the winter?) promises to bloom almost year-round. The plot serves practical purposes, too: This covering of vegetation offers insulation that helps moderate the building's temperature, which is expected to help the school save on cooling expenses in warm months and heating bills in the winter. Large windows open up to this area, allowing students to observe and learn about the life cycles of plants.
The garden covers one-third of the roof; the remainder consists of a white coating (as opposed to the typical black tarred surface) that reflects light and consequently prevents it from turning into heat. By reducing what's known as the urban-heat-island effect, a common problem plaguing cities, air-conditioning costs will be lower than usual. The roof also boasts a storm-water management system, with pipes that feed clean runoff water directly into a lagoon adjacent to the school.
From the initial planning phase, which began in early 2002, to the March 2003 ground-breaking ceremony to when the school doors opened this September, Tarkington's design and building team adhered to the USGBC's requirements. This checklist is designed to examine all aspects of a building to determine whether it uses natural resources efficiently and with little impact to the environment, while also providing an indoor environment that makes for healthy and productive occupants.
So, for example, at Tarkington, one-fourth of the building materials came from within a 500-mile radius of the school -- a requirement of LEED certification aimed to minimize transportation pollutants and fuel the local economy -- 90 percent of the structural steel is made of recycled metal, and a whopping 82 percent of the construction waste from the building was recycled. (LEED requires only half of this material to be processed for reuse.) In addition, the school anticipates using one-fifth less water than a regular building because of features such as low-flow toilets. Getting certified by the LEED also lends credence to a building's greenness, making it easier to secure grants in the future -- not an insignificant consideration for cash-strapped schools.
All this came with a $23 million price tag, roughly 6 percent more than a nongreen school would have cost. However, as green proponents argue, these upfront costs must be weighed against the savings of operating a sustainable building throughout the structure's lifetime. (A 2003 study conducted for California's Sustainable Building Task Force that examined the costs and benefits of thirty-three diverse LEED-certified buildings found that most green strategies paid for themselves within three years.) In the case of Tarkington, that life expectancy is a hundred years. If early indications prove true, it will be a very good century indeed.


Edutopia. 2014. Going Green: Designing Eco-Friendly Schools. [online] Available at: http://www.edutopia.org/tarkington-green-school [Accessed: 2 Apr 2014].

This article addresses the matter of eco friendly schools which is an important initiative for both schools and individuals to do in helping to create a sustainable environment. This is an article about a Elementary school in Chicago and how it has helped in reducing its Carbon foot print. In this article there are ideas for other schools and how they begin to change and implement into their schools to help the environment they live in. 

This article shows how the  school is environmentally sustainable and how when building the school they used eco friendly parts and ensured the parts where bought locally. The school also aims in instilling in their students an understanding around being environmentally friendly and educating them on environmental sustainability. And this article shows how one school has made a difference and how simple it is to start the initiative, as well as informing and educating students it helps to create a feeling of belonging and being apart of not only the school but for the cause. 



10 Eco friendly College Campuses US




Warren Wilson College, Asheville, N.C.


Colleges are going green to save the planet and some money, too. Warren Wilson’s EcoDorm, built in 2003, was the first college building to earn the Leadership in Energy & Environmental Design’s (LEED) highest rating—the Platinum certification—for existing buildings.


University of Colorado at Boulder

UC-Boulder topped Sierra Club’s greenest colleges list in 2009. The school partnered with the National Renewable Energy Labs to create these wind turbines at the Wind Research Park, south of Boulder, to feed energy into a grid benefitting all of Colorado.



Ithaca College, Ithaca, N.Y.


Ithaca’s Dorothy D. and Roy H. Park Center School for Business and Sustainable Enterprise opened in 2008. Featuring a vegetated roof that reuses storm water runoff, it is the first undergraduate business school in the world to earn the LEED Platinum certification.


The Evergreen State College, Olympia, Wash.

Evergreen’s organic farm is used to teach courses such as organic agriculture. Its organic produce is served in campus eateries, sold through a Community Supported Agriculture program and a twice-weekly farm stand on campus, and donated to local food banks.


University of New Hampshire, Durham, N.H.

UNH’s EcoLine, completed in 2009, is the nation’s first major university to create a landfill gas-to-energy project. The school is the first to use landfill gas as its primary fuel source, which will power up to 85 percent of the campus’s electricity and heat.

University of California, Santa Barbara

Bren Hall, which houses the Bren School of Environmental Science & Management at UC-Santa Barbara, is the nation’s first building to earn two LEED Platinum certifications. It features roof solar panels to help power the building and is made of recycled materials.


College of the Atlantic, Bar Harbor, Maine

A member of the school’s Campus Committee on Sustainability helps compost food, an effort the school has been involved in since its 1972 founding. The student residences and dining hall have compost bins. The compost feeds the college’s organic community gardens.

Arizona State University, Tempe, Ariz.

ASU’s School of Sustainability was launched in 2007 as the first sustainability degree-granting institution in the nation. It earned a LEED Silver certification and features energy- and water-efficient fixtures, recycled flooring, and rooftop wind turbines.

University of California, Santa Cruz

At UC-Santa Cruz, food waste is composted and approximately 24 percent of the produce served in dining halls is organic. The trayless dining program has successfully reduced food waste by 40 percent, and saves an estimated 30,000 gallons of water per month.

Middlebury College, Middlebury, Vt.

The college’s $12 million biomass plant is its most significant step toward becoming carbon neutral by 2016. The biomass boiler cuts the use of heating oil in half, reduces carbon dioxide emissions by 40 percent, and generates 20 percent of the campus’s electricity.




Kern, R. 2010. 10 Eco-Friendly College Campuses - US News. [online] Available at: http://www.usnews.com/education/slideshows/10-eco-friendly-college-campuses/2 [Accessed: 2 Apr 2014].


Comment:

These are different collages i looked at whom are involved or started up environmental sustainable initiatives as part of their curriculum and each initiative has benefitted the schools, colleagues, students, parents, teachers and communities differently. These are schools in the United states that have seen this problem and are coming up with different solutions for creating a sustainable environment.

Each college offers different ways in which they contribute to environmental sustainability.


Tidal Energy Pool

Eastern Seaboard Is A Tidal Energy Hotspot
Wednesday, 19 March 2014 00:00   

Eastern Seaboard Is A Tidal Energy Hotspot
Wave power has been grabbing the spotlight lately, but the US also has vast tidal power potential and the race is on to engineer a tidal energy device that can overcome some serious obstacles, namely interference with shipping, aquatic life, and recreation. It looks like a research team at Brown University is on to a solution, so let’s take a look and see what they’re up to.
Ocean Power Potential In The US
Tidal energy potential in the US has largely been untapped compared to Scotland and several other countries, but that is about to change in a big way, especially along the eastern seaboard.

Just last August, the Energy Department announced $16 million in funding for cutting edge ocean energy projects, and the company Verdant Power has already begun operating a hydrokinetic tidal energy turbine right in the heart of New York City.
Speaking of East Coast energy potential, the offshore wind sector is also coming on strong. The massive Cape Wind project in Massachusetts has just won out against a Koch-supported legal challenge, and another utility scale offshore wind power project is under way in Rhode Island.
Getting back to tidal energy, despite the obstacles to shallow water deployment there is one key advantage that tides have over wave or wind power, and that is their unerring around-the-clock reliability.
Reliability is becoming a moot point as next-generation energy storage technology begins to mainstream, but given the localized nature of the emerging renewable energy economy, tidal energy could still provide the most cost-effective resource for some regions.
The Brown University Tidal Energy Solution
Brown University has focused its tidal energy project on the juiciest locations, which also happen to present the greatest challenges.
According to an Energy Department report cited by Brown, the most effective locations are in shallow bays and inlets, typically no deeper than ten meters, where the narrowness of the channel speeds up the pace of tidewater both coming and going.
That basically cuts out conventional underwater turbines, which rely on a windmill style configuration. The blades would be too short to be effective, but long enough to create potential hazards for wildlife, shipping, and recreation.
The solution is a hydrofoil configuration. Based on the same principle behind the design of airplane wings, a hydrofoil is oriented so that it is pushed up a pole by incoming water, then pushed back down.
Writer Kevin Stacey of Brown recaps the advantages of the hydrofoil design compared to turbines:
A single wing can span an area that would require a series of several turbines placed side-by-side — an expensive and inefficient arrangement. Gaps between the turbines would allow water to slip through untouched, which is a waste of potential power. A wide wing, on the other hand, could generate power from the entire span.
Since the project is supported by ARPA-E, the Energy Department’s cutting edge research funding agency, you can expect some extra bells and whistles.
One is a collapsible design, when enables the devices to duck under passing ships.
Another is a self-teaching computer algorithm that monitors the wing and fine-tunes its motion to maximize efficiency as tidal conditions change, testing out different strokes to decide which is the most efficient.
The project is still in the prototype stage, with a 16″ wide model undergoing tests in the lab, and the outlook is promising.
So far the device has been gathering power up to four times more efficiently than conventional hydrokinetic systems, and the lab expects even better results in the field, where flows will be faster.
The team is currently seeking additional federal funding and an industry partner to launch a new prototype at a testing facility in New Hampshire, so stay tuned.

SOURCE:GO Media - written by Tina Casey - Artist rendering (cropped) courtesy of Brown University.



Simplygreen.co.za. 2014. Eastern Seaboard Is A Tidal Energy Hotspot. [online] Available at: http://www.simplygreen.co.za/articles/articles/eastern-seaboard-is-a-tidal-energy-hotspot.html [Accessed: 2 Apr 2014].


Comment:
The reason i choose this article is because tidal energy is a huge energy provider and can be used all over the world all alternative energy providers are expensive to build but once established and built can bring in a large amount of energy and can bring in a lot of money. Both Tidal, solar and wind energy can be used in the Western Cape and for companies to build these alternatives types of renewable energies for their corporate social investment to uplift communities could be beneficial for both the community and the business. 

Renewables energies are a new and constantly evolving area of technology. This specific technology is still developing but can be used in Cape Town. 











Producing Bionic Plants

Energy-Producing Bionic Plants — Researchers Use Nanomaterials To Augment Plants
Wednesday, 19 March 2014 00:00   

Energy-Producing Bionic Plants — Researchers Use Nanomaterials To Augment Plants
Imagine human-designed ‘bionic’ plants with enhanced energy production that can perform valuable functions such environmental pollutant monitoring. Sort of like plant-based substitutes for conventional machines. Sounds a bit far-fetched? Well, apparently it’s not — in fact, it’s already a reality.
Researchers from MIT have succeeded in substantially boosting the light-capturing abilities of various plants via the implantation of nano-materials, as well as giving the plants completely new functions — such as the monitoring of environmental pollutants.
The gains made with regard to the plants’ ability to capture light energy — an increase of 30% — were achieved through the use of embedded carbon nanotubes in the chloroplast — the plant organelle where photosynthesis takes place. The plants were also then modified with carbon nanotubes in order to be able to detect the gas nitric oxide.

This research represents some of the first in the emerging field of “plant nanobionics.”
Michael Strano, the Carbon P Dubbs Professor of Chemical Engineering, and also the lead researcher behind the new work, explains the appeal of the approach: “Plants are very attractive as a technology platform. They repair themselves, they’re environmentally stable outside, they survive in harsh environments, and they provide their own power source and water distribution.”
In addition to the functions represented in the new work, the researchers see a great many other possibilities, including “turning plants into self-powered, photonic devices such as detectors for explosives or chemical weapons. The researchers are also working on incorporating electronic devices into plants.”

The press release from MIT provides the specifics on how the research was performed:
The idea for nanobionic plants grew out of a project in Strano’s lab to build self-repairing solar cells modeled on plant cells. As a next step, the researchers wanted to try enhancing the photosynthetic function of chloroplasts isolated from plants, for possible use in solar cells.
Chloroplasts host all of the machinery needed for photosynthesis, which occurs in two stages. During the first stage, pigments such as chlorophyll absorb light, which excites electrons that flow through the thylakoid membranes of the chloroplast. The plant captures this electrical energy and uses it to power the second stage of photosynthesis — building sugars.
Chloroplasts can still perform these reactions when removed from plants, but after a few hours, they start to break down because light and oxygen damage the photosynthetic proteins. Usually plants can completely repair this kind of damage, but extracted chloroplasts can’t do it on their own.
To prolong the chloroplasts’ productivity, the researchers embedded them with cerium oxide nanoparticles, also known as nanoceria. These particles are very strong antioxidants that scavenge oxygen radicals and other highly reactive molecules produced by light and oxygen, protecting the chloroplasts from damage.
The researchers delivered nanoceria into the chloroplasts using a new technique they developed called lipid exchange envelope penetration, or LEEP. Wrapping the particles in polyacrylic acid, a highly charged molecule, allows the particles to penetrate the fatty, hydrophobic membranes that surrounds chloroplasts. In these chloroplasts, levels of damaging molecules dropped dramatically.
Using the same delivery technique, the researchers also embedded semiconducting carbon nanotubes, coated in negatively charged DNA, into the chloroplasts. Plants typically make use of only about 10% of the sunlight available to them, but carbon nanotubes could act as artificial antennae that allow chloroplasts to capture wavelengths of light not in their normal range, such as ultraviolet, green, and near-infrared.
With carbon nanotubes appearing to act as a “prosthetic photoabsorber,” photosynthetic activity — measured by the rate of electron flow through the thylakoid membranes — was 49% greater than that in isolated chloroplasts without embedded nanotubes. When nanoceria and carbon nanotubes were delivered together, the chloroplasts remained active for a few extra hours.
The researchers then turned to living plants and used a technique called vascular infusion to deliver nanoparticles into Arabidopsis thaliana, a small flowering plant. Using this method, the researchers applied a solution of nanoparticles to the underside of the leaf, where it penetrated tiny pores known as stomata, which normally allow carbon dioxide to flow in and oxygen to flow out. In these plants, the nanotubes moved into the chloroplast and boosted photosynthetic electron flow by about 30%.
With regard to the sensors which rely on this increased electron flow rate, the researchers are next looking to develop plants that can function as monitors for environmental pollution, pesticides, fungal infections, or exposure to bacterial toxins.
“Right now, almost no one is working in this emerging field,” Giraldo states. “It’s an opportunity for people from plant biology and the chemical engineering nanotechnology community to work together in an area that has a large potential.”
The new research was detailed in a paper published in the journal Nature Materials.
SOURCE:GO Media - written by James Ayre - Credit: Bryce Vickmark


Simplygreen.co.za. 2014. Energy-Producing Bionic Plants — Researchers Use Nanomaterials To Augment Plants. [online] Available at: http://www.simplygreen.co.za/articles/articles/energy-producing-bionic-plants-researchers-use-nanomaterials-to-augment-plants.html [Accessed: 2 Apr 2014].


This article is about using plants as a technology to monitor the environmental pollutions. This could be helpful in means of using plants to measure the pollutants in our environment. Plants let off oxygen which is good for our environment in which we can't live without and for plants to be able to measure our environmental pollution's to help in reducing this level of pollution. 

This is a huge advancement in technology to be able to do this with our plants. And it is advancements like this that we need to help develop and grow into a sustainable country and in protecting our environment.