Update on Permaculture Pygmies – Introducing Solar Ovens, Water Filter and SODIS
Aid Projects, Biological Cleaning, Community Projects, Energy Systems, Potable Water — by Xavier Fux February 1, 2012
We built a solar oven made out of cardboard, and showed the pygmies how to purify water through a solar disinfection unit (the SODIS System). We also showed them how to make a filter with a bucket full of sand, gravel and active carbon.
by Xavier Fux
Who said last days weren’t productive? Before leaving, we wanted to provide the pygmies with some very useful tools that can greatly simplify things for them:
- Simple, easy-to-build solar ovens (to reduce the need for firewood and all the negative implications that come with it)
- Sand-gravel-charcoal water filter (to clean the water from the 20,000L pond in order to use it for washing and other uses)
- Solar disinfection system for water (to purify water from the 1000L tank)
Permaculture in Damaged Lands: Degradation and Restoration in New Mexico
Community Projects, Conservation, Courses/Workshops, Deforestation, Demonstration Sites, Eco-Villages, Education Centres, Energy Systems, Gabions, Irrigation, Land, People Systems, Processing & Food Preservation, Regional Water Cycle, Rehabilitation, Society, Soil Conservation, Soil Erosion & Contamination, Storm Water, Swales, Village Development, Waste Water, Water Contaminaton & Loss, Water Harvesting — by Dan Smith January 21, 2012
A certain coal-strewn road in Madrid, New Mexico
— the remnants of a now defunct railway.
Alternately barren and spectacular, the southwest United States has piqued the imagination of Americans and people across the world for generations. The site of gold rushes, Native American homelands, and a culture of lawlessness that has yet to fade completely, much of the land was degraded and destroyed long before Hollywood discovered how to cash in on retelling stories from its checkered past. Films may glorify the breadth and scope of the iconic terrain, but the essence and character of the Southwest ecology has been drastically altered; it little resembles what it once was.
Comments (6)John Hardy: My Green School Dream
Aid Projects, Building, Community Projects, Eco-Villages, Education, Education Centres, Energy Systems, Village Development, Waste Systems & Recycling — by Craig Mackintosh PRI Editor January 16, 2012
Comments (0)Join John Hardy on a tour of the Green School, his off-the-grid school in Bali that teaches kids how to build, garden, create (and get into college). The centerpiece of campus is the spiraling Heart of School, perhaps the world’s largest freestanding bamboo building. — Ted.com
The Rise of Tricycle Pushcarts
Consumerism, Energy Systems, Markets & Outlets, Society, Village Development — by Albert Bates January 11, 2012
Wandering tortillas
Comments (2)Even in backward mining communities, as late as the sixteenth century more than half the recorded days were holidays; while for Europe as a whole, the total number of holidays, including Sunday, came to 189, a number even greater than those enjoyed by Imperial Rome. Nothing more clearly indicates a surplus of food and human energy, if not material goods. Modern labor-saving devices have as yet done no better. — Lewis Mumford, Myth of the Machine : Technics and Human Development, 1967.
The Jean Pain Way
Commercial Farm Projects, Compost, Deforestation, Energy Systems, Land, Plant Systems, Rehabilitation, Soil Biology, Trees, Waste Systems & Recycling — by Mark Feineigle December 15, 2011
In the book Another Kind of Garden, the methods of Jean Pain are revealed. He spent his entire short-lived life studying brush land and forest protection, specifically fire prevention, alongside his wife Ida. These studies led to an enormous amount of practical knowledge for composting, heating water, as well as harvesting methane, all of which are by-products of maintaining a forest or brush land with fire prevention techniques. While this knowledge is applicable in many instances, it is worth remembering that the root of all of this knowledge lies in forest preservation. All of the activities described below are by-products of that process. The book goes into detail with the economics of such an operation. I will focus on the applications.
Comments (3)Harnessing the Sun’s Energy for Water and Space Heating
Energy Systems — by Earth Policy Institute
by Lester R. Brown, Earth Policy Institute
The pace of solar energy development is accelerating as the installation of rooftop solar water heaters takes off. Unlike solar photovoltaic (PV) panels that convert solar radiation into electricity, these "solar thermal collectors" use the sun’s energy to heat water, space, or both.
China had an estimated 168 million square meters (1.8 billion square feet) of rooftop solar thermal collectors installed by the end of 2010 — nearly two thirds of the world total. This is equivalent to 118,000 thermal megawatts of capacity, enough to supply 112 million Chinese households with hot water. With some 5,000 Chinese companies manufacturing these devices, this relatively simple low-cost technology has leapfrogged into villages that do not yet have electricity. For as little as $200, villagers can install a rooftop solar collector and take their first hot shower. This technology is sweeping China like wildfire, already approaching market saturation in some communities. Beijing’s goal is to reach 300 million square meters of rooftop solar water heating capacity across the country by 2020, a goal it is likely to exceed.
Comments (2)A Litre of Light
Energy Systems, Waste Systems & Recycling — by Craig Mackintosh PRI Editor December 1, 2011
This is perhaps the most resourceful use of plastic crap I’ve ever seen.
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The Hunt for Low Energy Houses
Building, Energy Systems, Urban Projects — by Jessica Ryall November 15, 2011
You don’t need a super-fantastic-amazing funny-looking low energy house to cut down your home energy use if you know what you’re looking for. Not every house in suburbia is a low energy house. You have probably noticed it yourself. Some homes are just naturally bright and sunny. They’re always nice to be in and mysteriously toasty warm in winter. During the summer, all the owner has to do is open the back door and a cool breeze magically flows through the house. Other homes are the exact opposite. In winter, the sun never seems to come into the windows. The cold breeze rattles the floorboards underfoot. And that state-of-the-art gas heater only seems to warm the few inches of air around it. In summer the heat is oppressive and no matter what you try, even with the air conditioning turned up all the way, it is always more comfortable under the tree outside.
U.S. Carbon Emissions Down 7 Percent in Four Years: Even Bigger Drops Coming
Consumerism, Energy Systems, Global Warming/Climate Change, Society — by Earth Policy Institute November 4, 2011
by Lester R. Brown, Earth Policy Institute
Between 2007 and 2011, carbon emissions from coal use in the United States dropped 10 percent. During the same period, emissions from oil use dropped 11 percent. In contrast, carbon emissions from natural gas use increased by 6 percent. The net effect of these trends was that U.S. carbon emissions dropped 7 percent in four years. And this is only the beginning.
The initial fall in coal and oil use was triggered by the economic downturn, but now powerful new forces are reducing the use of both. For coal, the dominant force is the Beyond Coal campaign, an impressive national effort coordinated by the Sierra Club involving hundreds of local groups that oppose coal because of its effects on human health.
Rocket Stove Water Heater Redux
Energy Systems — by Milkwood Permaculture October 31, 2011
Rocket stoves are awesome, experimental, and a knowledge stream in flux. Or ours is, at any rate. Our rocket stove water heater has been doing its thing for nearly three years now, so we decided to take it apart and do a full examination of how it had fared.
So Nick and our current permaculture interns set to work completely dismantling the rocket stove water heater and examining all its components. We made new discoveries and adjustments, put it all back together, and then covered the whole thing with mud.
Comments (4)Solar Power 2011 – Solar PV Breaks Records in 2010
Energy Systems, Global Warming/Climate Change — by Earth Policy Institute October 28, 2011
by Lester R. Brown, Earth Policy Institute
Solar photovoltaic (PV) companies manufactured a record 24,000 megawatts of PV cells worldwide in 2010, more than doubling their 2009 output. Annual PV production has grown nearly 100-fold since 2000, when just 277 megawatts of cells were made. Newly installed PV also set a record in 2010, as 16,600 megawatts were installed in more than 100 countries. This brought the total worldwide capacity of solar PV to nearly 40,000 megawatts—enough to power 14 million European homes.
A Solar Powered Life, Part IX: The Conclusion
Energy Systems — by Chris McLeod October 12, 2011
This is the concluding article in the series A Solar Powered Life which looks at the various issues, compromises and components of an off-grid (standalone) solar power system. In previous articles I have written about the individual components in this system, but in this article I’ll explain how all of these components are connected. It’s also worth reflecting on the question of why a standalone solar power system would be of interest to permaculturalists, so we’ll take a look at that also.
Comments (10)U.S. Gasoline Use Declining: Keystone XL Pipeline Not Needed
Developments, Energy Systems, Society, peak oil — by Earth Policy Institute October 10, 2011
by Lester Brown, Earth Policy Institute
As the debate unfolds about whether to build a 1,711-mile pipeline to carry crude oil from the tar sands in Canada to refineries in Texas, the focus is on the oil spills and carbon emissions that inevitably come with it. But we need to ask a more fundamental question. Do we really need that oil?
The United States currently consumes more gasoline than the next 16 countries combined. Yes, you read that right. Among them are China, Japan, Russia, Germany, and Brazil. (See Excel data.)
But now this is changing. Not only is the affluence that sustained this extravagant gasoline consumption eroding, but the automobile-centered lifestyle that was considered part of the American birthright is fading as well. U.S. gasoline use has dropped 5 percent in four years.
Farming in the Hood
Aid Projects, Community Projects, Economics, Energy Systems, Land, Society, Urban Projects, Village Development — by Craig Mackintosh PRI Editor October 6, 2011
This is inspirational!
See more of their work on their YouTube channel.
Comments (2)From the Mara Soil – a Film About Simple and Natural Solutions to Poverty, Hunger and Disease
Aid Projects, Building, Community Projects, Demonstration Sites, Energy Systems, Food Forests, Food Shortages, Health & Disease, Land, Medicinal Plants, Rehabilitation, Society, Village Development, Waste Systems & Recycling — by Craig Mackintosh PRI Editor September 29, 2011
What if global hunger, poverty and disease could be solved with resources already at our disposal?
A film directed by Steve Schrenzel
It was a pleasure to meet Tara Blasco and Lyn Hebenstreit at the Tenth International Permaculture Conference (IPC10) in Jordan this month. Tara and Lyn have been deeply involved in a Tanzanian success story that you’ll quickly become immersed in via the excellent new documentary above.
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