Re: [school-discuss] a way for humans to control global warming without a behavior change ?

[Cameron Miller <cdmiller@adams.edu>]

Hi Mike,

Maybe the information can be presented in a form more easily directly 
applied to a lecture, lesson plan, class demonstration, or k-12 lab 
exercise.  This could even be posted on a website so future schoolforge 
readers can have a ready reference to use when forging a k-12 science 
course.  Future posts can be about a new piece of global warming course 
material being added to that website.

As it was presented, I missed the point of the post being source 
material for k-12 science teachers, (as you noticed).

- cameron

mike eschman wrote:
> hello,
> 
> this post was for k-12 science teachers, not you.
> the people on the global warming mailing list know about this stuff.
> sorry it didn't interest you,
> 
> thanks.
> 
> mike eschman, etc ...
> 
> 
> On Tuesday 03 September 2002 11:07 am, Cameron Miller wrote:
> 
>>Logic.  And this semester, Internet Server Security.
>>
>>- cameron
>>
>>mike eschman wrote:
>>
>>>hello Cameron,
>>>
>>>what do you teach ?
>>>
>>>mike eschman, etc ...
>>>
>>>On Tuesday 03 September 2002 10:47 am, Cameron Miller wrote:
>>>
>>>>Maybe this stuff can be better directed to some of the 28,000 sites
>>>>listed here:
>>>>
>>>>http://www.google.com/search?q=Global+Warming+Mailing+List
>>>>
>>>>- cameron
>>>>
>>>>mike eschman wrote:
>>>>
>>>>> Media Alerts Stories Archive --->
>>>>>http://earthobservatory.nasa.gov/Newsroom/MediaAlerts/2002/2002082010367
>>>>>. html
>>>>>
>>>>>August 20, 2002
>>>>>
>>>>>LIVERMORE RESEARCHERS SHOW DEPTH OF INJECTED CO2 INTO THE OCEAN CRITICAL
>>>>>AS A GLOBAL WARMING SOLUTION
>>>>>
>>>>>LIVERMORE, Calif. ? Researchers from the Lawrence Livermore National
>>>>>Laboratory have determined that the depth of an injection of carbon
>>>>>dioxide into the deep ocean is a good predictor of how effective that
>>>>>location is at sequestering carbon away from the atmosphere.
>>>>>
>>>>>Direct injection of CO2 into the deep ocean has been proposed as a way
>>>>>to slow the accumulation of carbon dioxide in the atmosphere, one of
>>>>>the causes of global warming. In the direct injection scenario,
>>>>>fossil-fuel carbon dioxide is injected into the ocean interior,
>>>>>bypassing the mixing processes that would otherwise cause a relatively
>>>>>slow transfer of excess atmospheric CO2 in to the deep ocean.
>>>>>
>>>>>In a study released today in Geophysical Research Letters, Ken Caldeira
>>>>>and Philip Duffy of the Climate and Carbon Cycle Modeling Group and
>>>>>Michael Wickett of the Center for Applied Scientific Computing, all at
>>>>>Livermore, show that the depth, rather than radiocarbon, is a relatively
>>>>>good predictor of the effectiveness of CO2 injection.
>>>>>
>>>>>The researchers studied both radiocarbon dating (typically used to date
>>>>>anthropologic items) and the depths of injection to determine the
>>>>>effectiveness of direct CO2 injection as a carbon sequestration
>>>>>strategy.
>>>>>
>>>>>Scientists used one-dimensional box-diffusion models and
>>>>>three-dimensional simulations run under the radiocarbon and
>>>>>sequestration scenarios described in Livermore's Ocean Carbon-cycle
>>>>>Model
>>>>>Intercomparison Project protocols.
>>>>>
>>>>>"These simulations indicate that the amount of time it takes for a water
>>>>>parcel to return to the ocean surface increases with depth, but is not
>>>>>related to the amount of time since that parcel was last at the
>>>>>surface," Duffy said.
>>>>>
>>>>>Injections were simulated at 800 meters, 1500 meters and 3000 meters for
>>>>>100 years near the Bay of Biscay, New York City, Rio de Janeiro, San
>>>>>Francisco, Tokyo, Jakarta and Bombay.
>>>>>
>>>>>The models showed that injection at 3000 meters is quite effective at
>>>>>sequestering carbon from the atmosphere for several centuries while
>>>>>injections at shallower depths are less effective. In general,
>>>>>injections into the Pacific Ocean (San Francisco and Tokyo) were more
>>>>>effective than injection at the same depth in the Atlantic Ocean (New
>>>>>York City, Rio de Janeiro and the Bay of Biscay).
>>>>>
> 
> 
> 
> 
> 



-- 
- cameron miller
- UNIX Systems Administrator
- Outhouse Attendant
- http://portal.adams.edu/outhouse/
- cdmiller@adams.edu