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</div> <div id="content" class="narrow_content"><h1>ecoGizmo</h1> <div class="summary_item noback"> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/low-impact-hobbit-home/20058/">Low-impact Hobbit home only cost US$4,650 to build</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/bridget-borgobello/">Bridget Borgobello</a></p> <p><em>13:35 October 5, 2011</em></p> </div> <div class="summary_details_right"> <p></p> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/image_modernist.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/low-impact-hobbit-home/20058/picture/144038/">19 Pictures</a></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/low-impact-hobbit-home/20058/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/hobbithouse-21.jpg" title="The 'Hobbit home' took three months to complete, and came in at under US$5,000 (GBP3,0..." alt="The 'Hobbit home' took three months to complete, and came in at under US$5,000 (GBP3,0..."/></a></center> <div class="summary"> <p>Simon Dale, with the help of his father in-law, has single-handedly built this low impact Hobbit house in the woodlands of West Wales. The eco-house, which rose from a muddy hole in the ground and took three months to complete, came in at under US$5,000 (GBP3,000) – demonstrating that you don't need to be architectural school graduate to come up with the goods. There's no need to be envious, however, because Dale will give you the plans and know-how to build your very own. <a href="/web/20111006103603/http://www.gizmag.com/low-impact-hobbit-home/20058/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/blackfriars-solar-railway-bridge/20057/">Work starts on world's largest solar bridge at Blackfriars</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/paul-ridden/">Paul Ridden</a></p> <p><em>13:16 October 5, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/blackfriars-solar-railway-bridge/20057/#comments">1 Comment</a> </p> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/image_modernist.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/blackfriars-solar-railway-bridge/20057/picture/144034/">4 Pictures</a></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/blackfriars-solar-railway-bridge/20057/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/blackfriarssolar.jpg" title="The new Blackfriars railway station, being built on the foundations of a Victorian bridge ..." alt="The new Blackfriars railway station, being built on the foundations of a Victorian bridge ..."/></a></center> <div class="summary"> <p>Blackfriars Bridge, a Victorian rail bridge in the heart of London, is now well on its way to becoming the biggest solar array in the city and the world's largest solar bridge. When the installation is complete, the roof of the new Blackfriars railway station will be home to over 6,000 square meters (64,583 sq.ft.) of solar panels, satisfying half of the station's power needs. <a href="/web/20111006103603/http://www.gizmag.com/blackfriars-solar-railway-bridge/20057/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/seatwirl-spinning-wind-turbine/19965/">SeaTwirl puts a new spin on offshore wind turbines</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/ben-coxworth/">Ben Coxworth</a></p> <p><em>21:44 September 27, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/seatwirl-spinning-wind-turbine/19965/#comments">22 Comments</a> </p> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/image_modernist.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/seatwirl-spinning-wind-turbine/19965/picture/143535/">6 Pictures</a></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/seatwirl-spinning-wind-turbine/19965/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/seatwirl.png" title="The SeaTwirl's vertical wind turbine (1), torus ring (2), float assembly (3) and generator..." alt="The SeaTwirl's vertical wind turbine (1), torus ring (2), float assembly (3) and generator..."/></a></center> <div class="summary"> <p>One of the main drawbacks of wind turbines is the fact that for maximum efficiency, the power that they generate must be fed into the grid right as the wind is blowing and their blades are spinning. While that power <em>can</em> be stored in batteries for later use, some of it will always be lost in the process. Sweden's experimental new SeaTwirl system, however, is designed to kinetically store wind energy until it's required - it's basically a seagoing flywheel. <a href="/web/20111006103603/http://www.gizmag.com/seatwirl-spinning-wind-turbine/19965/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/new-york-delancey-underground-garden/19962/">New York's proposed subterranean garden</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/bridget-borgobello/">Bridget Borgobello</a></p> <p><em>07:00 September 27, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/new-york-delancey-underground-garden/19962/#comments">7 Comments</a> </p> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/image_modernist.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/new-york-delancey-underground-garden/19962/picture/143503/">4 Pictures</a></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/new-york-delancey-underground-garden/19962/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/delancey.jpg" title="The Delancey Project hopes to create New York's very first subterranean green space (Image..." alt="The Delancey Project hopes to create New York's very first subterranean green space (Image..."/></a></center> <div class="summary"> <p>Three New York entrepreneurs have unveiled plans to turn a long abandoned underground train terminal into a lush and thriving garden. Conceived by architect James Ramsey, VP of the PopTech social innovation network Dan Barasch and money manager R. Boykin Curry IV, the Delancey Underground Project hopes to create New York's first subterranean green space beneath one of the city's least green zones - the Lower East Side - in an unused rail space that stretches over two acres and is nearly the size of Gramercy Park. <a href="/web/20111006103603/http://www.gizmag.com/new-york-delancey-underground-garden/19962/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/edible-nontoxic-carbon-filter/19955/">Edible sponge captures and stores carbon dioxide</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/ben-coxworth/">Ben Coxworth</a></p> <p><em>13:14 September 26, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/edible-nontoxic-carbon-filter/19955/#comments">3 Comments</a> </p> <p></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/edible-nontoxic-carbon-filter/19955/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/co2sponge.jpg" title="The Northwestern filter changes color when full of carbon dioxide, then changes back after..." alt="The Northwestern filter changes color when full of carbon dioxide, then changes back after..."/></a></center> <div class="summary"> <p>As concerns continue to rise over man-made carbon dioxide entering the atmosphere, various groups of scientists have begun developing <a href="https://web.archive.org/web/20111006103603/http://www.gizmag.com/smokestack-halves-co2-emissions-byproduct/18323/" target="_blank">filters</a> that could remove some or all of the CO2 content from smokestack emissions. Many of these sponge-like filters incorporate porous crystals known as metal-organic frameworks (MOFs). Unfortunately, most MOFs are derived from crude oil, plus some of them contain toxic heavy metals. Researchers from Illinois’ Northwestern University, however, recently announced that their <em>nontoxic</em> MOF sponge – made from sugar, salt and alcohol – is fully capable of capturing and storing CO2. As an added bonus, should you be really hungry, you can eat the thing. <a href="/web/20111006103603/http://www.gizmag.com/edible-nontoxic-carbon-filter/19955/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/quantum-dot-solar-cell-efficiency-record/19922/">New efficiency record advances spray-on solar cells</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/noel-mckeegan/">Noel McKeegan</a></p> <p><em>01:55 September 23, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/quantum-dot-solar-cell-efficiency-record/19922/#comments">4 Comments</a> </p> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/image_modernist.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/quantum-dot-solar-cell-efficiency-record/19922/picture/143264/">4 Pictures</a></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/quantum-dot-solar-cell-efficiency-record/19922/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/quantum-dot-solar-cell.jpg" title="Researchers at the University of Toronto have set a new efficiency record for colloidal qu..." alt="Researchers at the University of Toronto have set a new efficiency record for colloidal qu..."/></a></center> <div class="summary"> <p>Advancing solar technology is a trade-off between the efficiency of the cells themselves and the cost of producing and installing them. <a href="https://web.archive.org/web/20111006103603/http://www.gizmag.com/more-efficient-quantum-dot-solar-cells/17933/" target="_blank">Quantum dot solar cells</a>, which use nanoscale semiconductors to produce electricity, promise low-cost production and, because they can be sprayed or painted on, big benefits in terms of installation. In the efficiency stakes quantum cells don't score as well as silicon-based or CIGS <a href="https://web.archive.org/web/20111006103603/http://www.gizmag.com/tag/solar-cell/" target="_blank">solar cells</a>, but a new efficiency record for colloidal quantum dot solar cells represents a big step towards narrowing the gap. This breakthrough isn't about the quantum dots though, it's about the wrapping. <a href="/web/20111006103603/http://www.gizmag.com/quantum-dot-solar-cell-efficiency-record/19922/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/korean-smart-windows/19920/">New 'smart windows' said to outperform previous efforts</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/ben-coxworth/">Ben Coxworth</a></p> <p><em>14:27 September 22, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/korean-smart-windows/19920/#comments">4 Comments</a> </p> <p></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/korean-smart-windows/19920/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/smartwindows.jpg" title="Buildings such as this office tower could benefit from windows that can be darkened or lig..." alt="Buildings such as this office tower could benefit from windows that can be darkened or lig..."/></a></center> <div class="summary"> <p>Dimmable windows, in one form or another, have been with us for several years now. We’ve seen examples such as the manually-adjustable <a href="https://web.archive.org/web/20111006103603/http://www.gizmag.com/go/8253/" target="_blank">SPD-Smart</a> motorcoach windows, the energy-harvesting <a href="https://web.archive.org/web/20111006103603/http://www.gizmag.com/smart-energy-glass/14700/" target="_blank">Smart Energy Glass</a> product, and the <a href="https://web.archive.org/web/20111006103603/http://www.gizmag.com/ravenwindow-automatically-changes-transparency-with-temperature/15468/" target="_blank">RavenWindow</a>, which darkens or lightens according to the outside temperature. According to researchers from Korea’s Soongsil University and Korea Electronics Technology Institute, however, such windows can be expensive, don’t work properly for long enough, and require toxic substances in their manufacturing process. The team claims to have developed a system of their own, that has none of these drawbacks. <a href="/web/20111006103603/http://www.gizmag.com/korean-smart-windows/19920/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/producing-hydrogen-from-wastewater/19884/">Researchers turn wastewater into “inexhaustible” source of hydrogen </a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/darren-quick/">Darren Quick</a></p> <p><em>23:25 September 19, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/producing-hydrogen-from-wastewater/19884/#comments">28 Comments</a> </p> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/image_modernist.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/producing-hydrogen-from-wastewater/19884/picture/142958/">3 Pictures</a></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/producing-hydrogen-from-wastewater/19884/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/bacterialhydrolysiscellwithred-2.jpg" title="Penn State researchers have developed an electrolysis cell with RED stack that produces pu..." alt="Penn State researchers have developed an electrolysis cell with RED stack that produces pu..."/></a></center> <div class="summary"> <p>Currently, the world economy and western society in general runs on fossil fuels. We've known for some time that this reliance on finite resources that are polluting the planet is unsustainable in the long term. This has led to the search for alternatives and hydrogen is one of the leading contenders. One of the problems is that hydrogen is an energy carrier, rather than an energy source. Pure hydrogen doesn't occur naturally and it takes energy - usually generated by fossil fuels - to manufacture it. Now researchers at Pennsylvania State University have developed a way to produce hydrogen that uses no grid electricity and is carbon neutral and could be used anyplace that there is wastewater near sea water. <a href="/web/20111006103603/http://www.gizmag.com/producing-hydrogen-from-wastewater/19884/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/velella-research-project-fish-farming/19857/">Velella Research Project is raising fish in sea-drifting pods</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/ben-coxworth/">Ben Coxworth</a></p> <p><em>12:59 September 16, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/velella-research-project-fish-farming/19857/#comments">12 Comments</a> </p> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/image_modernist.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/velella-research-project-fish-farming/19857/picture/142743/">5 Pictures</a></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/velella-research-project-fish-farming/19857/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/valella.jpg" title="The Velella Research Project's Aquapod, adrift off the coast of Hawaii " alt="The Velella Research Project's Aquapod, adrift off the coast of Hawaii "/></a></center> <div class="summary"> <p>There are a number of reasons that many people are opposed to fish farming. Among other things, they claim that the caged fish release too much concentrated waste into the surrounding waters, too many antibiotics and anti-algal chemicals are used, the ecological balance is upset when non-native fish escape from their pens, and strain is put on populations of local fish that are captured for use in feed for carnivorous farmed fish. Unfortunately, wild-fish-capturing methods such as drift net fishing and bottom trawling have big problems of their own. A new system that involves raising fish in mesh spheres that float in the open ocean, however, is claimed to sidestep many of the drawbacks of traditional marine aquaculture. The Velella Research Project is pioneering the technology. <a href="/web/20111006103603/http://www.gizmag.com/velella-research-project-fish-farming/19857/">Read More</a> </p> </div> </div> <div class="summary_item "> <div class="summary_details"> <div class="sd_top"> </div> <div class="clear_both"> <h2><a href="/web/20111006103603/http://www.gizmag.com/climate-reality-project-24-hour-live/19833/">The Climate Reality Project's 24 hour live streamed event beginning NOW - alert your friends</a></h2> <div class="summary_details_left"> <p>By <a href="/web/20111006103603/http://www.gizmag.com/author/mike-hanlon/">Mike Hanlon</a></p> <p><em>17:58 September 14, 2011</em></p> </div> <div class="summary_details_right"> <p><img src="/web/20111006103603im_/http://www.gizmag.com/images/icons/splashyIcons/comments.png" alt=""/> <a href="/web/20111006103603/http://www.gizmag.com/climate-reality-project-24-hour-live/19833/#comments">31 Comments</a> </p> <p></p> </div> </div> </div> <center><a class="noback" href="/web/20111006103603/http://www.gizmag.com/climate-reality-project-24-hour-live/19833/"><img src="https://web.archive.org/web/20111006103603im_/http://images.gizmag.com/hero/climate-reality-project.jpg" title="The Climate Reality Project has just kicked off its '24 Hours of Reality' live streamed ev..." alt="The Climate Reality Project has just kicked off its '24 Hours of Reality' live streamed ev..."/></a></center> <div class="summary"> <p>The Climate Reality Project (formerly known as the Alliance for Climate Protection) has just kicked off its "24 Hours of Reality" live streamed event. The presentation runs 24 hours, is available live in 13 languages, and is the beginning of a worldwide campaign to present the latest information about the climate crisis and reject misinformation. <a href="/web/20111006103603/http://www.gizmag.com/climate-reality-project-24-hour-live/19833/">Read More</a> </p> </div> </div> <center class="snap_noshots"> <div class="next_prev"><strong> <span>1</span> <a href="/web/20111006103603/http://www.gizmag.com/ecogizmo/2/">2</a> <a href="/web/20111006103603/http://www.gizmag.com/ecogizmo/3/">3</a> <a href="/web/20111006103603/http://www.gizmag.com/ecogizmo/4/">4</a> <a href="/web/20111006103603/http://www.gizmag.com/ecogizmo/5/">5</a> <a href="/web/20111006103603/http://www.gizmag.com/ecogizmo/2/">Next </a> » </strong></div> </center> <div class="dotsontop"> <!-- Google Search Box --> <div id="search_form_bottom"> <form action="https://web.archive.org/web/20111006103603/http://www.gizmag.com/search/" id="cse-search-box-bottom"> <span class="title">Looking for something? 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