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Madison’s NEW Roofline

Tuesday, May 11th, 2010

A few months ago, InkedGreen published Green Roofs to the People! The post discussed the underlying concept of green roofs and highlighted some phenomenal (local) efforts to grow green roofs in Madison.

Those efforts, driven by Danna Olsen, are still underway and will be culminating this THURSDAY at the Madison Public Library-Sequoya Branch at 6 PM (For directions to the event, click here). If green property management sparks your fancy, be sure to check out the invitation below. Hope to see you there!


Madison's NEW Roofline

Sustainable Corporations

Saturday, April 24th, 2010

Environmental greenwashing or legitimate concern?

Is there such a thing as a sustainable corporation?

From an admittedly biased perspective, the word ‘corporation’ generally elicits images of large factories, smog, environmental degradation, assembly lines, CEOs, CFOs, shareholders, hazardous working conditions and so on. Ideas on the opposite end of the spectrum qualify ’sustainable’: local, small-scale, regeneration, preservation, organic, green technology, renewable energy, etc. However, this is not always the case for either term.

Recently, I was “strongly encouraged” to open up my mind to the concept of a sustainable corporation. Honestly, I chuckled out loud when I heard those words together. I laughed even harder when I learned that I was to investigate the sustainability of the largest retailer in existence, Walmart. After all, who hasn’t heard of The Walmart Effect?

Despite the relative evils associated with Walmart, their sustainability goals and achievements are quite admirable, especially when compared to other companies. The corporation has broad but straightforward goals with regard to sustainability:

  • To be supplied 100% by renewable energy;
  • To create zero waste;
  • To sell products that sustain people and the environment

With 7,400 stores worldwide, are such goals even achievable?

(The answer is “Yes”).

Last July, Walmart unveiled a plan for a new Sustainability Index. The purpose of the Index is to measure the sustainability of every product the retailer sells. It will be implemented in three distinct phases, with the final phase resulting in “greater transparency into the quality and history of products” so that customers can consume in a more sustainable way. The following description of the phases come from an article I wrote for Leonardo Academy a few weeks ago.

Sustainable Corporation?

Phase One of the Sustainability Index will require Walmart suppliers to dig deep into the sustainability of their products, analyzing all aspects of each product and measuring its environmental footprint. To help suppliers embark on this journey, Walmart designed a 15-question assessment to evaluate supplier energy efficiency. The survey questions focus on four main themes: energy and climate, material efficiency, people and community, and natural resources. Top-tier suppliers were asked to complete the survey by October of 2009, while smaller suppliers were given longer timelines.

The second phase of the Index is the Lifecycle Analysis Database. It involves the creation of a consortium of universities to collaborate with key players, including suppliers, retailers, non-governmental organizations, and government officials. The objective is to establish a global database of product information, including commodity chains and cradle-to-grave—or, hopefully cradle-to-cradle—lifecycles. While Walmart provided the initial funding and resources for the consortium, it is not the company’s intention to administer it. That task will be shared by the University of Arkansas and Arizona State University.

The third phase of the Index is arguably the most important when words turn into actions. When the two phases are completed, the Sustainability Index should function as a valuable resource for customers, providing them with the necessary information to consume in a more sustainable way.

If all goes according to plan, this system will allow both wholesale purchasers (like Walmart) and retail purchasers to drive advances in sustainability by suppliers and manufacturers.

Let us know your thoughts: Does Walmart have what it takes to lead a new era of sustainability or is this campaign simply another form of greenwashing?

Sky-High Ambitions With Vertical Farming

Tuesday, March 9th, 2010

One possible vertical farm design

Many of us, when asked what comes to mind with the words “sustainably harvested” or “organically grown” and all the other buzz-words used to describe a more eco-centric farming approach, tend to picture the countryside rather than cityscapes.

But what if that’s not the only way to keep the environment in mind? Indeed, completely returning to nature, forgoing modern technologies, and scrapping our skyscrapers is not really a viable option.  The unsurprising fact is, the human population is growing and the amount of available land is shrinking. But instead of expanding out, what about expanding up?

The United Nations World Urbanization prospect of 2007 estimates well over half of the world’s population will live in cities by the year 2050. Some city planners and “green builders” have decided to use this growing trend to their advantage through “vertical farming.”

What is vertical farming? Basically, it is just what the name says. It’s throwing this traditionally horizontal setup on land, and turning it vertical. Dickson Despommier, an environmental health professor at Columbia University in New York City, had his class take the idea of rooftop gardening in cities to a whole new level. Literally. Their idea was 30-story urban farms with a greenhouse on every floor.

These city-block-size, 30-story skyscrapers would have transparent walls to maximize sunlight and would produce enough food for 50,000 people using hydroponic greenhouse methods.

According to the Vertical Farm Project, some of the advantages of vertical farming include:

  • Year-round crop production; 1 indoor acre is equivalent to 4-6 outdoor acres, or more
  • No weather-related crop failures due to droughts, floods, pests
  • All vertically farmed food is grown organically
  • Eliminates agricultural runoff by recycling black water
  • Converts black and gray water (waste water) into potable water
  • Dramatically reduces fossil fuel use (no tractors, plows or shipping)
  • Converts abandoned urban properties into food production centers
  • Creates new employment opportunities

However, these sky-high structures have sky-high prices to match. As of yet, no vertical farms have been constructed, at least on such a grandiose scale. Although this concept may take more time and tweaking to put into place, it is just these types of innovative ideas that are key towards a more sustainable future.

For more information on Vertical Farms and plans for them in the future, visit http://www.verticalfarm.com/index.html.

*Image courtesy of The Vertical Farm Project