Sons of David Foundation on Paulownia: 2009

Tuesday, December 15, 2009

Emissions Trading



Emissions’ trading is a means of achieving environmental objectives at potentially lower cost than the more traditional use of uniform standards on emissions sources. Properly designed emissions trading systems can also encourage innovation.


A number of different types of emissions trading approaches have been used in the United States and elsewhere. The least structured, termed emission “offsets,” involves a reduction of emissions at one place to compensate for increased emissions somewhere else. Such offsets can be between different plants or different sources within the same plant. Offsets can be particularly useful in allowing new or expanded sources of pollution to exist in a region already failing to meet its environmental objectives.


A more ambitious approach, which requires additional governmental infrastructure, is the open-market trading system. This approach allows a pollution source to earn marketable emission rights by reducing its emissions to levels below a regulatory standard or by making reductions in advance of a prescribed deadline. The credits earned may be sold to other sources and used to offset an equal amount of excess emissions. The credits may also be resold or (where allowed) banked for future use. Open-market trading has not been formally implemented in the United States.


Still more ambitious, flexible, and demanding in terms of government infrastructure is a cap-and-trade system, where sources in an area may trade pollution reduction responsibilities among themselves to meet an aggregate emissions cap for a given region. Under this system, the regulatory authorities decide on the aggregate level of allowable emissions for all the parties participating in the program (the "cap") and then it allocates to each party a portion of this amount in the form of "allowances," which are tradable rights to pollute. Once allowances are allocated, parties are prohibited from emitting more pollution than their allocation, unless they purchase additional allowances from another party.


The Environmental Protection Agency's (EPA) acid rain program, widely hailed a success from both environmental and economic perspectives, is the most prominent example of the cap-and-trade type of emissions trading. Emission reductions are ahead of schedule and the costs are considerably lower than anticipated.


Emissions’ trading has several potential advantages compared to traditional regulatory approaches. Firms are free to use the options they believe to be most cost-effective, and they do not need to seek approval from government authorities or engage in lengthy negotiations about the "appropriateness" of their actions. At the same time, some remain skeptical of emissions trading, on both ethical and technical grounds. One thing that is widely agreed upon is that credible monitoring systems are essential to ensure the environmental integrity of emissions trading regimes.


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Friday, December 11, 2009

PanAmerican Properties on Carbon Credits

Informative web site on carbon credits and how paulownia is used in reforestation for CER's. There is a glossary of terms on the site & examples of typical documents in the industry.
clipped from paulowniapanama.org


A Mature Managed Paulownia Farm




Everything is always impossible before it works. That is what entrepreneurs are all about--doing what people have told them is impossible.

 




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Wednesday, August 19, 2009

Paulownia vs. Balsa

Paulownia Wood... the Cheaper, Stronger Alternative to Balsa Wood

Balsa has been incorrectly considered to have the highest strength to weight ratios of any wood in the world.

Paulownia has been thoroughly tested and found to have a higher strength to weight ratio than Balsa!

Auburn University tested the strength of 18 lb p/cubic ft. Paulownia against Balsa, with an average weight of 10 lbs p/cubic foot.

(See Table 1)

Strength modus of rupture mor (psi)

Balsa

2800

Paulownia

5740

- Source: Dr. R.C. Tang, Auburn University


Some Balsa core material is sliced at 3/8 inch with end-grained material. Paulownia can be cut at 3/16 and offer approximately the same strength and weight. Paulownia offers a space saving benefit, being cut half as thick. There is also a significant cost savings because half as much material is needed.

Lighter grades of Paulownia weigh only 14lbs per cubic foot. This is lighter than many Balsa grades.

When considering the large amount of epoxy that Balsa soaks up, Paulownia gains an even larger weight advantage.

Paulownia is easily carved and can hold nails and screws without splitting. It also provides greater stability and flexibility for making molds and models.