Green Options

Sprawl is a constant issue at the outside periphery of every city in the country. Although matters have abated temporarily in the midst of the housing and mortgage crunch, new construction continues to decimate the countryside at further distances away from the city centers. However, the state of California is weighing a measure in the state legislature that might help curtail the growth of exurban sprawl developments.

The extension of suburbs further and further out from the core of businesses and services not only consumes acres of land, with its attendant loss of woods, fields, wetlands, farmland, and animal habitat, but it also requires miles of pavement, and the attendant infrastructure (sewers, phone and power lines, etc.) to support the new development. Residents of these displaced communities are forced to rely on cars for more and more of their access to various services and amenities, and very often travel greater distances to work as well as other destinations. This increases both the consumption of fuel resources and the pollution caused from the extra travel.

Guest Contributing Writer Philip Proefrock is more frequently found writing about green building and design issues at our sister blog Green Building Elements. His wife, Stacia Proefrock is a homebirth midwife, doula, and fertility consultant and is a member of the Michigan Midwives Association organizing committee for the MANA conference.

The Midwives Alliance of North America (MANA) annual conference will be held in Traverse City, Michigan later this October. MANA is a professional organization for midwives throughout North America. “MANA’s goal is to unify and strengthen the profession of midwifery, thereby improving the quality of health care for women, babies, and communities.”

You can help support the work of midwives.  MANA is working to push legislation in a number of states where the practice of midwifery and homebirth is not fully legal.  While some states have laws that support and encourage the practice of midwifery, many other states are less supportive.  MANA is also advocating for insurance companies to allow homebirth options as a safe, less-expensive and less resource consuming alternative to standard hospital births.

The 2008 Olympic Games in Beijing are supposed to be the greenest yet. There has been some coverage on television, and despite all the attempts to clean things up beforehand and to limit especially the air pollution during the games, pictures from the city show it still in many ways to be a smoggy, grimy place. It’s not wholly bad, however. The buildings constructed for some of the competitions are architecturally striking, and they seem to be a functional success, as well. But how do they stack up as green buildings?

Sometimes, some of the greenest solutions come from the simplest of ideas.  Take the cottage community.  What could be simpler than the idea of building houses that are radically smaller in square footage than the national average?  Not everyone wants all that extra space, and many would rather have a smaller home built well than a cheaply made box full of emptiness.

Cottage communities are [...]

A South African company called Moladi is promoting their system for quickly building homes. Using their system, the exterior walls for a single-family dwelling can be built in a matter of just a day or two, and it can be done using unskilled labor. But, while their goals are admirable, it’s a question whether or not this is a really green method of building.

The system uses lightweight formwork panels, much like those used for poured concrete walls. Once erected, the forms are filled with mortar (concrete without stone) which can be hand-mixed and hand-placed, or which can be mechanically mixed and pumped into place. Typically, the formwork can be removed the day after the mortar is poured. The result is a smooth finish material, little more than a roof is needed to complete the building.

On the downside, this material uses 250 kilograms of portland cement per cubic meter (about 420 pounds per cubic yard), making it fundamentally the same as a concrete building with an enormous carbon footprint stemming from the extensive use of cement in these buildings.

What does it look like to build a house with lots of green features? We see pictures of the finished buildings, and we read about the features that make them green. We know about the importance of good insulation and reducing electrical loads and choosing efficient equipment. But what does it look like while it all goes together?

Al Gore presented a dramatic and widely discussed speech on matters of climate, carbon emissions, and energy last week.  Maybe you didn’t get to listen to it at the time, and would like to read the text, but reading speeches can be boring.

Science-fiction author and journalist Bruce Sterling, who founded something called the Viridian Design Movement back in 1998 has posted the text of Gore’s speech interspersed [...]

Recessed can lighting is a familiar method of lighting rooms.  Rather than having fixtures protruding into the space, the light source is hidden in a recess in the ceiling, reducing glare.  But, when the ceiling above is insulated, the can light fixture is a potential source of air leaks and thermal bridging.

I recently got a press release from a company advertising a product to quickly and easily “convert” recessed can lights to a pendant light look.  But, after a brief look, it turns out to be a particularly bad case of greenwash.

Governments are beginning to mandate green building for some new construction, and that ought to be a cause for celebration. But because of the way these requirements are made, the possibility of problems arising when a building does not meet a required level of green building could lead to legal difficulties and lawsuits.

Solar water heaters are far more efficient and have a much shorter payback period than do solar photovoltaic systems.  Getting heat from direct solar radiation is extremely simple (just step outside on a sunny day), and can be done with far less complex systems than what solar PV requires.

Starting in 2010 all single family homes in Hawaii will be required to have solar hot water heaters. A bill signed by the state’s Republican governor, Linda Lingle, makes the state the first to require solar hot water for all new residences.