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E-M:/ MORE: Re: Power from Not-So-Hot Geothermal



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Enviro-Mich message from "Lowell Prag" <lprag@mail.msen.com>
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Alexander J. Sagady wrote:

... see below ...

Hello Alex,

To pursue this discussion, you are incorrect:

hydrofluorocarbons (HFCs) are mainly ozone depleters, although less
destructive of the ozone layer than the previous chlorofluorocarbons
(CFCs) which they replaced, and hydrofluorocarbons (HFCs) are NOT a
significant factor contributing to the greenhouse gas effect.

To wit:

total HFC emissions when converted to carbon dioxide equivalency,
are about 1% of the total anthropogenic greenhouse gas emissions.

I refer you to:

http://www.eia.doe.gov/oiaf/1605/ggrpt/other_gases.html

Regards,

Lowell Prag


Alexander J. Sagady wrote:

> Lowell Prag bravely upbrades Brad van Guilder for
> saying the Hydrogenated ChloroFlouroCarbons (HCFCs) are
> greenhouse gases....
>
> Sagady has the final word on this.....
>
> HCFCs are....
>
> .....greenhouse gases as Brad claims.
>
> ....and are also ozone depleters, although
> HCFCs do not have nearly as long of an
> atmospheric residence time as ordinary CFCs
>
> Methane is also a greenhouse gas.
>
> See:
> http://yosemite.epa.gov/oar/globalwarming.nsf/content/emissions.html
>
> and
>
> http://yosemite.epa.gov/oar/globalwarming.nsf/UniqueKeyLookup/RAMR6P5M5M/$File/06FastFacts.pdf
>
>
>
>
> At 11:26 AM 09/25/2006, Lowell Prag wrote:
>>-------------------------------------------------------------------------
>>Enviro-Mich message from "Lowell Prag" <lprag@mail.msen.com>
>>-------------------------------------------------------------------------
>>
>>Brad van Guilder wrote:
>>
>>"...
>>HFCs are extremely potent greenhouse gases - 1,000 to 10,000 times worse
>>that Carbon Dioxide and their use should not be encouraged.  Energy
>>conservation and discouraging increases in demand for energy should be
>> our
>>first task.
>>..."
>>
>>Hello Brad,
>>
>>You are confusing ozone depleting gases with greenhouse gases.
>>
>>Carbon dioxide, methane, etc. are greenhouse gases
>>which trap the Earth's reflected heat from the Sun.
>>
>>Refrigerants like hydrofluorocarbons (HFCs) are ozone depleting gases
>>which destroy the ozone layer protecting us from the Sun's radiation.
>>
>>Regards,
>>
>>Lowell Prag
>>
>>
>>> On Sep 25, 2006, at 1:36 AM, Lowell Prag wrote:
>>>
>>>> -----------------------------------------------------------------------
>>>> --
>>>> Enviro-Mich message from "Lowell Prag" <lprag@mail.msen.com>
>>>> -----------------------------------------------------------------------
>>>> --
>>>>
>>>> Power from Not-So-Hot Geothermal
>>>>
>>>> This power system could make it feasible to generate
>>>> cheap electricity from lukewarm geothermal sources.
>>>>
>>>> http://www.technologyreview.com/read_article.aspx?
>>>> id=17524&ch=energy&sc=&pg=1
>>>>
>>>> Regards,
>>>>
>>>> Lowell Prag
>>>>
>>>>
>>>> ==============================================================
>>>> ENVIRO-MICH:  Internet List and Forum for Michigan Environmental
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>>>>
>>> ---------------------------------
>>> Brad van Guilder, Ph. D.
>>> Community Organizer
>>>
>>> Ecology Center
>>> 117 North Division Street
>>> Ann Arbor, MI 48104-1580
>>>
>>> (734) 663-2400 ext 114
>>> (734) 663-2414 FAX
>>> (313) 205-6386 CELL Not available while driving!
>>>
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>>> http://www.stoptrash.org
>>>
>>> UAW Region 1A Toxic Waste Squad
>>
>>
>>
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>
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