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He answers readers' questions with regards to such technical issues as energy consumption, efficiency, life cycle analysis, and environmental footprints of business. His perspective is that of a seasoned engineer with the added business sense that comes with an MBA in Sustainable Management.
Is it environmentally better to keep my 1986 Mercedes-Benz W126 or buy a new hybrid?
This is a question I have gotten a lot, and one that I have wondered about myself. You see a modern-day tie-dye aficionado puttering along the highway in his VW van with black smoke spewing out the back, and you have to wonder if we wouldn't all be better off if he traded it in for a Prius. The consensus among some environmentalists -- perhaps ones who drive late-'60s Mustangs -- seems to be that driving your old car creates significantly less pollution than the manufacture of a new car. I wish it were that easy.
The Argonne National Lab, a U.S. Department of Energy research center, has analyzed the material intensity and energy consumption of manufacturing vehicles and vehicle fuels. Their work is packaged in GREET models (for greenhouse gases, regulated emissions and energy use in transportation). According to the models, the average conventional internal combustion engine vehicle is made up of 61.7 percent steel, 11.1 percent iron, 6.9 percent aluminum, 1.9 percent copper/brass, 2.9 percent glass, and around 13.6 percent plastic/rubber. This information helps determine the energy required to produce a vehicle.
Continue reading at: http://www.salon.com/mwt/feature/2008/04/21/ask_pablo_cars/index.html
I've read in more than one place that 100 square miles of solar panels in the U.S. would meet all...[read more]
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AskPablo is on vacation this week. I would like to wish you and your family happy holidays and all the...[read more]
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This week a frequent reader presented me with a common dilemma. "Does the fuel economy improvement of a hybrid really...[read more]
Now that turkey day is behind us the holiday season is in full swing. Despite my annual Grinch-like attitude, it...[read more]
This week Jamie asked me about the climate change impact of her company’s vehicle fleet and the options for reducing...[read more]
Many people have asked me about the feasibility of "clean coal" paired with carbon capture and sequestration (CCS) as a...[read more]
When we read the words "Water, water everywhere, nor a drop to drink [sic]" from Samuel Taylor Coleridge's poem "The...[read more]
Despite its name, Greenland is anything but green (which I can appreciate since my name is also a bit misleading...[read more]
Kristina recently needed new car tires so she asked me where the old ones go. She wasn't referring to the...[read more]
This week's question comes from Richard. He asks how the price of Carbon Dioxide is determined. Unfortunately for me this...[read more]
This week I was asked by Craig how many trees his office kills each year. In order to give him...[read more]
This week I was asked by George about helicopter emissions. Recently Astrum Helicopters announced that they will be offering helicopter...[read more]
This week a reader asks about how much the now open Northwest Passage will save in shipping emissions. This year,...[read more]
While the business world is abuzz with talk of green and sustainable business practices, it's important to remember that workplace...[read more]
After seeing images of the melting Greenland Icecap on television this weekend my mother asked me if it would be...[read more]
This week I am going to examine the world of coal-fired power plants. Coal is an energy-dense substance found deep...[read more]
August 13th's article on desalination received a lot of great feedback. On reader informed me of a technology that uses...[read more]
This week Calvin Tran wrote to AskPablo about commuting. He wrote: "I spend a lot of time in traffic because...[read more]
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