![]() |
|
|
Thread Tools | Display Modes |
#71
|
|||
|
|||
![]() bill wrote: Methane in the atmosphere has a 5 year half-life. Don't listen to the borg, get the facts : "Methane has an atmospheric lifetime of 12 +/- 3 years and a GWP of 62 over 20 years, 23 over 100 years and 7 over 500 years. The decrease in GWP associated with longer times is associated with the fact that the methane is degraded to water and CO2 by chemical reactions in the atmosphere." http://cosmic.lifeform.org Okay, I was wrong by a small amount in my half-life statement, I read it last year. However, Your citation is also wrong. the proportion of the methane which degrades to co2 remains in the atmosphere for milennia, correct, but the water vapor precipitates out. Additionally, atmospheric lifetime is wildly different from half-life. |
#73
|
|||
|
|||
![]() "bill" wrote in message oups.com... He also assumes that the environment in which we all live could sustain such levels. I don't think there is any precedent for that assumption. I don't think plants will complain. How do you know? The planet has never sustained those levels. 800 ppm? 800 ppm will easily desertify the planet and melt all the ice. increased temperature accelerates the evaporation precipitation cycle, really, you are looking at more tropical type climates and less desert. It isn't that simple. Increased CO2 increases the temperature, which increases the evaporation rate, which increases precipitation - in areas where there is precipitation. Deserts (the Sahara, for instance), by and large, aren't benefiting from such a scenario, and in fact, are growing as we speak. Granted, however, as the climate regime changes, the weather patterns will change with them and places which have traditionally not gotten rain will begin to. in the case of the sahara, the southerly shifting of the gulfstream will start to drop rain there instead of europe. Except that there is no indication that that is occurring. The fact is that the Sahara and most other deserts (including those in the Southwestern U.S.) are expanding. In addition, the melting of the polar caps, and the attendant rise in sea levels will further increase the global precipitation since evaporation is a surface phenomenon. And, as we all know, water is the most potent greenhouse gas, so it will only exacerbate the warming. Note: Silver linings sometimes com with pretty freaking huge thunderstorms. I never said this would be fun, just survivable for technological society. Unsubstantiated assumption. George |
#74
|
|||
|
|||
![]()
Coby Beck wrote:
"Lloyd Parker" wrote in message ... In article , h (Rand Simberg) wrote: On Thu, 16 Mar 2006 14:38:17 GMT, in a place far, far away, "El Guapo" made the phosphor on my monitor glow in such a way as to indicate that: "Scott Nudds" wrote in message ... "El Guapo" wrote Yeah... human sacrifice, dogs and cats, living together... mass hysteria! Ya, we saw a lot of that during the Bush's Katrina Fiasco. Good point, Scott. "Katrina" was a classic case of mass hysteria. Actually, it was a classic case of press hysteria. Most of the reporting turned out to be wrong. So all those people weren't trapped in the Superdome of Convention Center? Half of the population isn't still displaced? All the reports of child rapes and murders in the super dome were false. All the reports of rampant looting and lawlessness in NOLA were wrong. The reports of stranded people shooting at rescue helicopters were wrong. All the general depictions of poor black people as dangerous animals were wrong. Gosh, it's almost like Katrina and Rita never happened! No wonder FEMA is letting those trailers sit. http://cosmic.lifeform.org |
#75
|
|||
|
|||
![]()
Clifford wrote:
Why live in an apartment when you can own your own home. It's the American dream! Sure, with a variable rate mortgage, you can declare bankruptcy! Besides, only welfare/socialist people live in apartments. Those darn commies, they are everywhere! Public transportation is for people that can't afford a car! Right, befouling the land and air is your God given right! Why go backwards and sit on a puke smelling bus? Yes, you don't want to suffocate in stalled rush hour traffic! You can while away the hours in comfort. Just bring your own oxygen. Hey, guess what, hydrogen oxygen fuel cells have their own cryogenic oxygen tanks! Air conditioning. Heat. Don't you just love hydrogen and oxygen? Count me out of your utopia! Ok, you're out. http://cosmic.lifeform.org |
#76
|
|||
|
|||
![]()
On 16 Mar 2006 08:50:26 -0800, in a place far, far away, "bill"
made the phosphor on my monitor glow in such a way as to indicate that: "George" wrote in message He also assumes that the environment in which we all live could sustain such levels. I don't think there is any precedent for that assumption. I don't think plants will complain. How do you know? The planet has never sustained those levels. 800 ppm? 800 ppm will easily desertify the planet and melt all the ice. increased temperature accelerates the evaporation precipitation cycle, really, you are looking at more tropical type climates and less desert. Not to mention the fact that it would probably accelerate plant growth rates (and in fact such acceleration would prevent the levels from ever getting that high). But don't confuse Elifritz with reality. |
#77
|
|||
|
|||
![]() |
#78
|
|||
|
|||
![]()
On Thu, 16 Mar 2006 18:47:15 GMT, in a place far, far away, "Coby
Beck" made the phosphor on my monitor glow in such a way as to indicate that: Ya, we saw a lot of that during the Bush's Katrina Fiasco. Good point, Scott. "Katrina" was a classic case of mass hysteria. Actually, it was a classic case of press hysteria. Most of the reporting turned out to be wrong. So all those people weren't trapped in the Superdome of Convention Center? Half of the population isn't still displaced? All the reports of child rapes and murders in the super dome were false. All the reports of rampant looting and lawlessness in NOLA were wrong. The reports of stranded people shooting at rescue helicopters were wrong. All the general depictions of poor black people as dangerous animals were wrong. Don't forget the cannibalism. |
#79
|
|||
|
|||
![]()
On Thu, 16 Mar 2006 18:15:00 GMT, "Clifford" wrote:
Why live in an apartment when you can own your own home. It's the American dream! Exacty. Pay rent for 40 years, retire, and... you still have to pay rent. Buy your own place, and when you get it paid off, you don't have to pay rent any more. Besides, only welfare/socialist people live in apartments. You got that right. Buses suck. Sharing space with strangers sucks. Waiting on buses sucks. Having to walk blocks because that's as close as the bus gets to where you want to go sucks. Not having service when you want it (like 1:00 AM after the late movie) sucks. Buses suck. Public transportation is for people that can't afford a car! Absolutely. Why go backwards and sit on a puke smelling bus? Yep - most of 'em are fairly clean, but the bozo you have to sit beside may or may not be. Count me out of your utopia! Me too. Dave Head Clifford |
#80
|
|||
|
|||
![]()
Dave Head wrote:
Dave Head changing his email address and/or cross posting in science newsgroups sucks. plonk http://cosmic.lifeform.org |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Scientist warns that public knowledge of space engineering fixes for global warming may be undesirable, But never mentions the benefits of H2-PV | H2-PV | Policy | 0 | March 6th 06 11:04 AM |
Oxygen and Carbon Discovered in Exoplanet Atmosphere 'Blow Off' | Ron | Misc | 3 | February 16th 04 08:27 PM |
Hydrogen Sulfide, Not Carbon Dioxide, May Have Caused Largest Mass Extinction | Ron Baalke | Science | 0 | November 11th 03 08:15 AM |
Hydrogen Sulfide, Not Carbon Dioxide, May Have Caused Largest Mass Extinction | Ron Baalke | Astronomy Misc | 0 | November 3rd 03 05:14 PM |
What to do with Carbon Dioxide? | hanson | Astronomy Misc | 0 | July 10th 03 01:01 AM |