How Biodiesel Works" If you've read or watched the news lately, you've probably come across some article, snippet or sound bite related to oil and oil prices. Even in your daily routines, there's a good chance of someone mentioning it. Whether it's in automotives, economics, history, geography or politics, oil has managed to filter into almost every aspect of our daily lives. It's one of the most discussed (and controversial) commodities that consumers rely on daily. All of this talk about oil sparks continued interest in gasoline alternatives. Lost in the mix are the biofuels, fuels made from biological ingredients instead of fossil fuels. In this article, we'll take a closer look at biodiesel, one of the major biofuels. Generally speaking, biodiesel is an alternative or additive to standard diesel fuel that is made from biological ingredients instead of petroleum (or crude oil). Biodiesel is safe and can be used in diesel engines with little or no modification needed. Photo courtesy U.S.
Australiano transforma espaço de 60 m² em fazenda urbana A agricultura urbana é uma das soluções para garantir a segurança alimentar no mundo. Este é o pensamento do permacultor australiano Geoff Lawton. Como um dos grandes incentivadores do plantio em pequenos espaços, ele mostra que é possível produzir diversos tipos de alimentos em áreas muito pequenas. Para provar a eficiência deste conceito, o especialista mostrou o exemplo criado por um de seus alunos, que produz centenas de quilos de frutas, legumes e ervas medicinais em sua própria residência. Angelo Eliade é um farmacêutico que vive na cidade de Melbourne, na Austrália. “Você pode transformar qualquer propriedade, de qualquer situação para a absoluta abundância”, explica Lawton. O farmacêutico explica que não é necessário ter um conhecimento profundo do assunto ou ser um especialista para começar a plantar. Uma das principais dicas do australiano consiste em manter sempre a variedade na produção. Eliade ainda lembra que nada do plantio deve ser descartado.
Portable Power Station - Urban Survival La ONU dice que las cosechas orgánicas a menor escala son la mejor forma de alimentar al mundo Necesitamos cambios transformadores en nuestros sistemas alimentarios, agrícolas y comerciales con el fin de aumentar la diversidad en las granjas, reducir el uso de fertilizantes y otros insumos, apoyar a los agricultores que trabajan a menor escala y crear sistemas alimentarios locales fuertes. Esa es la conclusión de una nueva publicación extraordinaria de la Comisión de las Naciones Unidas sobre Comercio y Desarrollo (UNCTAD). El informe, Trade and Environment Review 2013: Wake Up Before it is Too Late (Comercio y Medio Ambiente 2013: Despierta antes de que sea demasiado tarde) incluyó contribuciones de más de 60 expertos de todo el mundo (incluyendo un comentario de IATP) y contiene secciones en las que se habla en profundidad sobre el cambio hacia una agricultura más sustentable y resiliente; la producción ganadera y el cambio climático; la importancia de la investigación y la extensión; el rol del uso de la tierra; y el rol de la reforma de las reglas del comercio mundial. 1. 2.
Build a Simple Solar Heater After walking into my workshop one December morning and feeling a bone-chilling 10 degrees, I decided to install a heating system. Given the rising costs of propane and my family’s environmental concerns about using nonrenewable fossil fuels, a solar solution seemed fitting. I’m a retired aircraft engineer, but you don’t need a similar background to tackle this project. I reviewed many solar collector concepts and decided to install a thermosiphon air collector on the south wall of the workshop. To minimize costs, I integrated the collector with the structure and used readily available materials. How It Works The thermosiphon collector consists of clear, corrugated polycarbonate panels fastened to 2-by-6-inch studs. At night, airflow reverses as air in the collector cools to outside temperatures. Performance and Economics On sunny winter days, the collector raises interior temperatures to between 60 and 75 degrees. Be sure to install adequate insulation and to control air infiltration.
The New Urban Agriculture: Growing the Second Green Revolution This article was condensed from Rebecca Solnit’s article “Revolutionary Plots,” which was first published in the July/August 2012 issue of Orion and may be found at Orion Magazine. The anti-war poet and soldier Siegfried Sassoon reports that toward the end of World War I, Winston Churchill told him that war is the normal occupation of man. Challenged, Churchill amended this to “war — and gardening.” Could it be the antithesis of war, or a cure for social ills, or an act of healing the divisions of the world? Production with Purpose This second Green Revolution is an attempt to undo the destructive aspects of the first one, to make an organic and intimate agriculture that feeds minds and hearts as well as bodies, that measures intangible qualities as well as quantity. Today, major urban agriculture projects are firmly rooted in Burlington, Philadelphia, Detroit, Milwaukee, Chicago, Oakland, Los Angeles, San Francisco and dozens of other U.S. cities. Growing Community: City Slicker Farms
Watch | The Crisis Of Civilization sneak a peek at these guys Crisis Of Civilization Aldeburgh Elevate Leeds Watch female impotence Share Subscribe Enter your email address to subscribe to this blog and receive notifications of new posts by email. Links Networking Please educate friends and help support this movie by sharing it. 2011 © Crisis Of Civilization. Growing vegetables: top tips for first-time kitchen gardeners Unike most of us, Joe has the advantage of being a professional at Kew. “I’m trained as a gardener, but to become a vegetable gardener especially for a thing like this was still starting in the deep end,” he says. Joe rapidly realised that Raymond Blanc, the man behind Les Quat’Saisons, a restaurant known for using seasonal ingredients grown in its own garden, has exacting standards. “Raymond is quite particular about what he wants, he wants it a perfect size and for it to be perfectly right down to each individual vegetable.” Raymond Blanc & Joe Archer enjoy seasonal delights from the garden (BBC/Lion Television Ltd/Laura Rawlinson) Here, Joe shares what he learned with his top tips for novice kitchen gardeners. Get to know the garden With any new garden, especially when you’re growing food, you have to work out the character. Grow what you enjoy It sounds obvious, but for a new starter grow what you like to eat. •James Wong on how to grow the best tasting beetroot Start small Read a book