Thursday, April 24, 2008
DOE is Finally Getting the Idea
Sunday, April 20, 2008
From Green Roofing to Vertical Farming
This photo of a re-creation of Viking houses in Newfoundland illustrates the use of grass as a building feature that helped maintain a comfortable living environment year-round. Plus it was readily available and cheap. But this was on buildings many centuries ago.
Today, we have commercial buildings such as this one in Fukuoka, Japan. This building, designed by architects Emilio Ambasz & Associates, houses offices, retail space, a 2,000 seat theater and a museum. Home to 35,000 plants, the ‘living’ roof greatly reduces the amount of energy required to heat and cool the building occupants. For more views of this building click here.
The Hundertwasser house (Forest Spiral), built in Darmstadt, Austria between 1998 and 2000 was designed by Friedensreich Hundertwasser, the famous Austrian architect and painter, who was widely renowned for his revolutionary, colorful architectural designs which incorporate irregular, organic forms, e.g. and onion-shaped domes. The structure houses 105 apartments that wraps around a landscaped courtyard with a running stream.
Canada’s largest green roof, Vancouver’s Convention and Exhibition Center, is currently under construction. It is expected to be completed in 2009 and will host the international media and broadcast center in the 2010 Winter Olympics. At a cost of over 850 million dollars the cost of this mammoth undertaking is being viewed by some Vancouver residents as excessive saying the money should, instead, go towards housing and feeding the poor.
This photo of the green roof Mountain Equipment Co-op in Toronto Canada is a prime example of mixing beauty with functionality to city rooftops.
Green roofing represents the next step in the growing evolution for more sustainable struwctures. Commercial structures that can collect and reuse rainwater to better manage stormwater runoff can avoid the need for expensive underground sand filters. They also combat the urban heat island effect of traditional building materials that soak up the sun’s radiation and re-emit it as heat, making cities at least 4 degrees Celsius (7 °F) hotter than surrounding areas. Here, Atlanta Georgia’s City Hall is covered with vegetation and soil creating energy savings as well as aesthetic benefits.
Vertical farming can address these issues and others. One self-sustaining vertical farm taking up one square city block and rising up 30 stories could provide enough nutrition to feed 10,000 people, utilizing currently technology. The building could also produce a net output of clean water and energy. Estimates show that 150 such buildings would be required to feed the entire city of New York for a year. However, we still need research in many areas to produce the greater yield that is going to be required to make these structures financially viable. According to experts, additional research in hydrobiology, engineering, industrial microbiology, plant and animal genetics, architecture and design, public health, waste management, physics, and urban planning, are needed to make this increase possible.
Architects have designed some very promising structures to help meet the expected need. Here Daekwon Park designed what is called a Symbiotic Interlock system of modular, prefabricated units that are attached to the outside of existing highrise buildings. The system of stackable modules add an extra layer of infrastructure to existing buildings via sky docks and bridges, vertical gardens, cultural spaces, and energy producing wind turbines. It addresses some of the shortcomings of green roofs by internalizing green environments within its biomorphic structure while contributing functionality, energy, and food.
Architect Pierre Sartoux of Atelier SOA designed this vertical farming skyscraper. A light-shading skin wraps around the structure and opens to admit sunlight at particular locations for various functional (and aesthetic) purposes. The building’s air, heating and cooling systems are wind-driven and circulate oxygen and carbon dioxide between growing and living spaces. The simple but reinforced structure is designed to handle additional dead loads from the weight of growing floors and also serve to make the entire building more durable (and thus sustainable).
In a different direction we go below the busy streets of Tokyo, just steps from the subway system, where you can find Pasona O2, an indoor urban farm where vegetables, rice, flowers and herbs flourish under fluorescent lights and LEDs in an environment that is almost entirely chemical-free. In a basement that was once a bank-vault, plants are cultivated and nourished hydroponically using nutrient-enhanced water instead of natural soil. Temperature, humidity, and carbon dioxide levels are all controlled by computers. This kind of tank-farming makes it possible to grow plants rapidly, all year round, by maintaining an optimal balance of nutrients.
Shanghai has also moved its greenery below ground. Shu Yu, deputy director of the Shanghai Urban Underground Space Development Institute, has revealed that local architects are working on developing China’s first underground park. Architects will landscape one of Shanghai’s existing underground shopping malls or pedestrian walkthroughs and complete the park in three years. The park is set to cover hundreds of square meters and eventually look like a small forest with winding streams. Can farming be far behind?
Moving onto the waterways running through cities is another adventure in farming. The Science Barge is a sustainable urban farm designed by New York Sun Works, a Manhattan-based environmental nonprofit organization. Situated atop a floating ‘barge’ greenhouse powered by solar, wind and biofuels, and irrigated by rainwater and purified river water, the farm grows food in the city with no carbon emissions, no net water consumption, and no waste stream. The vegetables grown on the Science Barge require seven times less land and four times less water than traditional field crops. The center also uses a method called ‘recirculating greenhouse hydroponics’ to grow tomatoes, lettuce, cucumbers, and peppers. No soil or pumped in water is utilized in this cultivation process.Wednesday, April 16, 2008
China’s whitewashed green initiative
Oh but they are planning on banning the use of half the city's 3.5 million vehicles, disallowing spray paint and other harsh chemicals to be used outdoors, closing about one-tenth of the city's gas stations, and halting construction in the Beijing area, which now has about 40 square miles of construction sites. This is only a temporary measure. They are basically going to put the city on hold during the Olympic games.
Their idea of staging “green games” does not involve anything more than to temporarily mothball 19 heavily polluting enterprises, including steel mills, coke plants and refineries. Coal-burning power plants, in China, account for a marked increase in soot, toxic chemicals and other climate-changing gases emitted into the atmosphere last year. In early April, a dense cloud of pollutants over Northern China sailed to nearby Seoul, sweeping along dust and desert sand before wafting across the Pacific. An American satellite spotted the cloud as it crossed the American West Coast.
The increase in global-warming gases from China's coal use will probably exceed that for all industrialized countries combined over the next 25 years, surpassing by five times the reduction in such emissions that the Kyoto Protocol seeks.
Sulfur dioxide production threatens the health of China’s citizens, contributing to about 400,000 premature deaths a year. It also causes acid rain that poisons lakes, rivers, forests and crops. Photo courtesy of Chang W. Lee, New York Times.
China uses more coal than the United States, the European Union and Japan combined. Every week to 10 days, another coal-fired power plant opens somewhere in China that is big enough to serve all the households in Dallas or San Diego.
China has a history of buying cheap and often antiquated equipment from well connected domestic suppliers rather than importing costlier more fuel efficient modern equipment from other industrialized nations that would better serve to help clean up the gases and other pollutants emitted from their coal burning plants.
China is beginning to enjoy the increased access to electricity that until only recently was available for a few hours in the evening for many rural families. Bringing electrical power to hundreds of millions of people will take some time and the quickest and cheapest way to do this is through burning through their abundant supply of coal. Unfortunately, the rest of the world is suffering from the resultant pollution.
Filters near Lake Tahoe in the mountains of eastern California "are the darkest that we've seen" outside smoggy urban areas, said Steven S. Cliff, an atmospheric scientist at the University of California at Davis.
Shutting down a few factories and banning cars from Beijing’s roads may help visitors breathe a little easier during the Olympics but China has a long way to go clean up the air we will all breathe after the Olympics are over.
Driving to save fuel
Here are a few tips I stole from The Good Human, sorry Dave. But they bear repeating and I did give you a plug.
2. Drive consistently. Jackrabbit starts and hard stops burn more gas.
4. Chill out. Roll down your windows to cool off in city driving, saving the air conditioner for highway travel, when open windows are a drag - literally - on a vehicle’s aerodynamics.
5. Lighten the load. Carrying extra cargo burns more gas. So take the golf clubs out of the trunk when not hitting the links.
6. Fill up when it’s cool. Early morning or late evening fill-ups generate fewer vapors.
7. Don’t top off the tank. Doing so can result in spilled gasoline, which creates environmental issues. There’s a good reason why the nozzle automatically shuts off, pay attention to it.
8. Use the correct fuel grade. Unless the manufacturer requires it, high-octane gas is a waste of money. The vast majority of engines are not high-performance and therefore you are wasting money on high grade. Read your owners manual.
10. Remove the roof rack. If you don’t need it, stop wasting gas carrying it around.
11. Get a tune up. A properly tuned engine improves fuel economy by about four percent, according to the EPA. Doesn’t sound like much but it adds up.
12. Replace a dirty air filter. One that is full of dirt, or even marginally dirty, makes the engine work harder and can let impurities damage the engine. Replacing a plugged air filter improves fuel economy by up to 10%. An even bigger saving than tune-ups.
13. Keep your tires properly inflated. Under-inflated tires can decrease mileage by 3% and can lead to reduced tire life-spans, not to mention decreased stopping ability.
Common sense tips that everyone can do and they all add up to stretching our limited supply of fuel as far as possible. Let’s all do our part.
Thursday, April 10, 2008
Parking lot generates its own power

Tuesday, April 8, 2008
Is global warming a conspiracy
Thursday, April 3, 2008
Biofuel Update: ALGAE
One of the latest attempts at creating a biofuel source has been with algae. Algae are among the fastest growing plants in the world, and about 50 percent of their weight is oil. That lipid oil can be used to make biodiesel for cars, trucks, and airplanes.
Algae is considered a better alternative to using corn and soybeans as a biofuel due to three factors, one: algae generates more fuel using less acreage, two: the diversion of corn and soybean from food to biofuel use increases the cost of food products, and three: the high agricultural use of nitrogen based fertilizers for corn and soybeans contaminates the water table and eventually runs off into the oceans adding to the already huge Dead Zone.Tuesday, April 1, 2008
American chestnut to heal scars
The use of the American chestnut is important to note here because a fungus blight that destroyed nearly 3.5 billion of the trees in the early 1900’s decimated the species nearly leaving it extinct. A few surviving trees, recently discovered in Warm Springs Georgia near Franklin D. Roosevelt’s Little White House, grow at the southern end of the Appalachian Mountains in an area known as Pine Mountain.
The federal government has been, for the last 30 years, requiring mining companies to smooth over all scars and seed the area with grass yet nearly 2.7 million open-sore acres still remain. Mining companies have been working to abide by the regulations but recently, federal regulators have begun promoting the planting of chestnuts and other hardwoods to improve drainage, reduce erosion and return the landscape to a more natural state.
In early March, 60 volunteers in a public-private partnership clambered over a coalfield on Zeb Mountain, 50 miles north of Knoxville, Tennessee and planted more than 200 germinated chestnut seeds over a two-acre plot of rocks, boulders and sandstone. The same thing will be done in the coming weeks in Ohio, West Virginia, Kentucky, Maryland and Virginia.
Mining companies should not be expected to be environmentalist or have forestry service talents, so working with individuals and organizations that do provide the know how is the best of all possible worlds. The project got its start in 2004, when regulators and university researchers in Appalachia and the mid-Atlantic states formed a network to push for the planting of chestnuts. It joined forces with the American Chestnut Foundation, and the idea soon gained backing from the U.S. Office of Surface Mining and the U.S. Forest Service. Only 300,000 acres are suitable for growing the chestnut so other trees and shrubs are planned.
The blight still lingers, along with the scars, but scientists are hopeful they can develop a blight-resistant hybrid and environmentalists are seeing a more sustainable answer than just planting grass. It is good to see that a collaboration between mining operators and environmentalist and scientist can lead to something meaningful.
300,000 acres down and 2.4 million acres to go.

