Author Archive

Zachary Shahan

Zachary teaches English as a foreign language in Poland. He is living in Wroclaw with his Polish partner, Marika. He has a Master's in city & regional planning from UNC-Chapel Hill and a Bachelor of Arts in environmental studies and sociology from New College of Florida.

Zach has lived in Groningen (the Netherlands), Sarasota & Bradenton (Florida), Chapel Hill & Carrboro (North Carolina), Sunnyvale (California), Ithaca (New York), and Charlottesville (Virginia).

He has worked as the Executive Director of the Alliance for Community Choice in Transportation (ACCT) in Charlottesville, VA, for the San Mateo County Planning and Building Department, the Center for Urban and Regional Studies at UNC, various health food stores (including corporate giant Whole Foods Market), and a 'green' retail store.

Zachary loves football (soccer, that is), Sade, soul music, good vegetarian cuisine, writing, teaching English and learning from the students, good cities, and being green.

Transit Use Boom, but in Some Surprising Cities


Transit use boomed from 2006-2008, but not in traditionally transit-friendly areas. This shows hope for more transit use in traditionally car-oriented places in the US in the future.

An analysis of the most recent transit use data from the U.S. Census Bureau shows that transit use grew by up to 47% in major metropolitan areas in the U.S. from 2006-2008, with several metro regions in the South and West growing by more than 10%.

The South and West, being more dominated by automobile-oriented development and auto use, have historically struggled to get significant transit ridership. However, the top ten cities with the highest recent increase in ridership include several metro areas in the South and West, including Charlotte, NC (47%), Riverside-San Bernardino-Ontario, CA (26.7%), Pheonix-Mesa-Scottsdale, AZ (23.6%), San Antonio, TX (15.1%) and others. This seems to shine a light of hope on increased transit use in the southern and western U.S. in the future.

First, however, why are we seeing a boom in these places?

Fossil Fuel CO2 Emissions Trends — 1990, 2000, 2008


Overall, global CO2 emissions from fossil fuels increased 29% between 2000 and 2008 and 41% from 1990-2008, and the current concentration of CO2 in the atmosphere is now at its highest in at least 2 million years, according to a new study in the journal Nature Geoscience.

The new report published this week by an international team of researchers who are part of the “Global Carbon Project” shows emissions trends through 2008 (including changes in emissions causes and in the amount of emissions remaining in the atmosphere) and brings up some major questions for the future as well.

Wave Energy Looking for Breakthrough — Using Aerospace Design


The oceans seem like a great potential source for clean energy. The force of the waves, the constancy, the size of the oceans — it all seems like something that could produce energy for humans without much harm. (I still have some concerns, though it seems like one of the best options these days). Some of the major problems with utilizing the force of the oceans, however, have been how to survive storms, the need to be anchored to the see floor, and efficiency.

Researchers from the US Air Force Academy have a new, outside-the-box idea for dealing with these problems — use an aerospace approach.

This is yet to be developed to full-scale and tested in that form, but early computer and model-scale tests are showing higher efficiencies than wind turbines, according to the National Science Foundation (NSF).

Oceans’ Ability to Absorb Carbon & Protect Against Climate Change Weakening


Oceans regulate our climate. They play a key role in keeping the world’s “homeostasis” in tact. However, their ability to absorb carbon & keep the climate in balance is dwindling, a new report shows.

In a year-by-year study from 1765 to 2008, researchers found that the oceans are struggling to meet increasing emissions demands. They cannot take in as much carbon as they used to.

The study, published in the November 19 issue of the journal Nature, found that the percentage of fossil fuel emissions the ocean has been taking in since 2000 has decreased by as much as 10%.

This is the first study of its kind or breadth. One previous study had attempted to measure the oceans’ industrial carbon absorption for one year — 1994. This does so for a period of 200+ years.

Asia Light Years Ahead of the US in Clean Tech Investment — Financial and Economic Consequences


Asia is investing hundreds of billions of dollars more than the US in clean technology, according to a new report by two research institutions. In the future, the US may be importing trillions of dollars of needed clean technology (and losing countless jobs to Asia) as a result.

In total, the report showed that China, Japan, and South Korea will invest about $509 billion in clean tech over the next 5 years, whereas the US (with our greenest President in decades, maybe ever) is only expected to invest $172 billion (about 3 times less) — this is assuming the climate and energy legislation in Congress passes.

If the US were to invest the same percentage of its Gross Domestic Product (GDP) as South Korea, it would invest almost $140 billion per year ($700 billion over this five year period)! Compared to China, the anticipated per-GDP investment ratio is 1:4 (US to China).

In 2008, Japan almost matched US R&D spending on energy and achieved almost the same number of international clean energy patents despite having dramatically lower GDP.

The financial investment is not the only thing giving these countries a major advantage in this field, though.

New Report Forecasts Solar Boom in NC — “Growing Solar in North Carolina”


A new report by Environment North Carolina’s Research and Policy Center, “Growing Solar in North Carolina,” found that North Carolina (home of my UNC Tar Heels) could be a solar power giant soon.

The new report found that North Carolina has a lot of solar energy potential due to its “vast” solar energy intensity (which is nearly as much as Florida’s) combined with other economic, policy and technological factors.

#3 Portland, Oregon (USA): Great Bicycle City Photo Tour

With bike weddings, bike parades, hundreds of naked bicyclists, bike fashion shows, popular & interesting cargo bikes, and travelling bike pubs, Portland is #3 on this great bicycle city photo tours list.

Portland has great bicycle facilities (colored bike lanes, bike boxes at intersections, great bike signs, off-road bicycle paths, etc.), a large number of people using the bicycle for transportation, and a bike culture that brings the fun of bicycling to another level.

As a result of these factors and more, Portland was the first large city in the US to achieve the Platinum level Bike Friendly award from the League of American Bicyclists (LAB) — the Platinum level being the highest level possible (above Gold, Silver and Bronze). It is truly a world-class bicycle city now, and the amazing photos in this photo tour help to show that.

Can Diet Coke Kill You? Part 2


Due to the great popularity of “Can Diet Coke Kill You?” combined with a lot of controversy over it, I have decided to write this follow-up post.

Most of the controversy over the last article was around the fact that the documentary I referenced cited data from the National Cancer Institute (NCI) but that organization itself claims there is no proven link between aspartame and cancer.

What was presented previously was a short explanation of why aspartame is expected to cause cancer and other health problems and a summary of some information presented in Sweet Misery, including findings from analyzing NCI and other data. This article, however, cites other scientific findings and discusses the economic-political history of this topic a little bit as well.

Turning Desert into a Garden/Food Forest



About two kilometers from the Dead Sea and two from where Jesus was christened, in the country of Jordan, Geoff Lawton of the Permaculture Research Institute and his crew created a near miracle turning desert into a lush permaculture garden.

In August in this location, Lawton says that temperatures could rise above 50 degrees Celsius (122 degrees Fahrenheit). People farming there were farming under plastic strips and using tons of synthetic chemicals and fertilizers. The idea to grow a lush forest or garden of edible plants would probably make people laugh or roll their eyes. Nonetheless, the permaculture crew had exactly this vision in mind and a little funding to help them to do it.

Economic Value of Ecosystems and Biodiversity — New Report


A new report, The Economics of Ecosystems and Biodiversity (TEEB), attempts to bring to the world’s attention the truly great economic value of ecosystems and biodiversity, as well as the benefits of taking these into account when making policies.

The value of the world’s natural ecosystems and biodiversity is something lacking in most economic analyses. Lack of value for what is truly priceless doesn’t just hurt the environment, however. It is also a sort of economic suicide. This new report, hosted by the United Nations Environment Programme and supported by key EU, UK, German, Swedish, Dutch, and Norwegian bodies, attempts to bring all of this to our attention more and show some positive case studies of how taking the environment into consideration can actually save us money.

As the report says: “the failure of markets to adequately consider the value of ecosystem services is of concern not only to environment, development and climate change ministries but also to finance, economics and business ministries.”

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