Energy Tower: Power for 15 Earths? Researchers have designed a product that its inventors claim could easily produce between 15 and 20 times the total electricity the world uses today. Not only that, it could also be used as a desalination device and may be able to reverse the effects of global warming. Those are pretty big claims, but the researchers from the Technion - Israel Institute of Science seem confident that the "Energy Tower" could be a major solution to the world's problems. They've been working on the concept since 1983, and together have spent more than 150 man-years researching, designing, testing, and analyzing. As project founder Professor Dan Zaslavsky explains, the Energy Tower works on the basic principle of convection: hot air rises and cold air falls. The 3,000-foot tall tower, with a diameter of 1200 feet, would take advantage of the heavy falling weight of cold air.
Köppen climate classification An updated Köppen–Geiger climate map Köppen climate classification is one of the most widely used climate classification systems. It was first published by Russian German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, German climatologist Rudolf Geiger collaborated with Köppen on changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. In the 1960s, the Trewartha climate classification system was considered a modified Köppen system that addressed some of the deficiencies (mostly that the middle latitude climate zone was too broad) of the Köppen system. The system is based on the concept that native vegetation is the best expression of climate.
Big Ideas: Linking Water, Power, and Sewer in K-12 A Center for Ecoliteracy – San Francisco Public Utilities Commission partnership. This publication is an addition to the Center for Ecoliteracy’s suite of Big Ideas curriculum resources. It was commissioned by the San Francisco Public Utilities Commission (SFPUC) as a guide for educators, curriculum developers, and schools to engage students. It stems from the commitment of the Center and the SFPUC to nurture the next generation of environmental stewards.
The ethical wardrobe: Is it OK to wear leather? Whether or not you chose to wear leather usually depends on your stance towards meat, be it vegan, vegetarian or carnivore. The issue of whether or not you are at ease with the practices of the meat industry is one for your own conscience: this column aims merely to provide some facts in an area where there is frequent misconception. Many people happily wear leather on the grounds that it's a byproduct of animal slaughter for meat and therefore a form of recycling - waste not, want not. Gardening Tips - 7 Habits of Successful Gardeners Originally published January 2009 Or is it the Seven Pillars of Horticultural Wisdom? As everyone's resolutions remind us, we love attaching a number to advice, a number smaller than the one I regard as most realistic: The Twenty Three Thousand Four Hundred and Sixty-Two Things It's Important to Remember Before Getting Out of Bed. So be warned: I haven't really honed it down to only seven; these are just the first seven essentials that came to mind when I decided to do this. And not in order, either. Make CompostUse CompostPlant Crops in Wide BedsMulchFeed the Soil, Not the PlantsShare SomethingBe There
Global Ecovillage Network Vison The Global Ecovillage Network envisions a world of empowered citizens and communities, designing and implementing their own pathways to a sustainable future, and building bridges of hope and international solidarity. Mission As a solution-based, multi-stakeholder alliance, GEN provides information, tools, examples and global representation to the expanding network of those dedicated to developing and demonstrating sustainability principles and practices in their lifestyles and communities around the world Goals Free Energy - How to Build Magnetic Power Generator for Home // To Our Faithful Current.com Users: Current's run has ended after eight exciting years on air and online. The Current TV staff has appreciated your interest, support, participation and unflagging loyalty over the years. Your contributions helped make Current.com a vibrant place for discussing thousands of interesting stories, and your continued viewership motivated us to keep innovating and find new ways to reflect the voice of the people. We now welcome the on-air and digital presence of Al Jazeera America, a new news network committed to reporting on and investigating real stories affecting the lives of everyday Americans in every corner of the country.
Cowspiracy: stampeding in the wrong direction By focusing on veganism to the exclusion of all else, Cowspiracy implies that anyone who eats meat isn’t a ‘proper’ environmentalist. This is deeply offensive and elitist, and it harms the movement we need to build. Danny Chivers is a professional carbon analyst, performance poet, climate activist, and author of the No-Nonsense Guide to Climate Change and No-Nonsense Renewable Energy. This article is republished, under a Creative Commons License, from New Internationalist. by Danny Chivers
Greenest building material in the world Green Material » Hemcrete, probably the greenest material on the planet. Posted on 19 November 2010. Tags: Architecture , biotecture , building material , cladding system , construction materials , earth architecture , Eco-Friendly Design , ecological architecture , sustainable architecture , sustainable ideas , sustainable solution , sustainable solutions , Uncompromising architecture Hemcrete Block It is no secret that 50% of all resources consumed across the planet are used in construction making it the least sustainable industry in the world. The Greening of the Self By Joanna Macy / filmsforaction.org Something important is happening in our world that you are not going to read about in the newspapers. I consider it the most fascinating and hopeful development of our time, and it is one of the reasons I am so glad to be alive today.