Global warming

O

Ocean_Driver

Active Member
Joined
15 Nov 2005
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52
Location
West Sussex
www.greensofchichester.co.uk
Has anybody else ever considered the possibility, that the threat of global warming, has nothing to do with what we are doing down here, on the surface of the planet. But is totally the responsibility of the various Governments, who burn ruddy great holes through the ozone layer on a daily basis, sending more GPS satellites to spy on our every move, and other pointless treks, to discover if some planet 7 billion light years away from us may actually excert a gravitational force!
 
And these governments aren't the responsibility of us down on the surface?
I also notice that you like skiing (major impact on Alpine vegetation and erosion) and motor racing (can't justify energy use for going from A to A repeatedly as noisily as possible)
 
Damn!
Not quite the response I hoped for. I hadn't ever thought that my sliding around on a pair of skis was going to bring the world to an end. I shall never go again!
Motor racing, love it! From the living room armchair on a Sunday afternoon with Murray (sadly missed). Can't really see that even a whole Grand Prix season would do the damage a single space shuttle would do to our atmosphere. (Least of all when they keep blowing up!)
 
It's got nothing to do with us the earths orbital track around the sun is moving if you think about it the earth only has to tilt a little and we in the UK will be 2000mls nearer to the sun and we will have Mediterranean Weather 1000mls give us our summer and winter climates. What caused the Ice age Not us humans the Earth just went on a bigger orbit around the sun. Our climate is controlled by a very precise orbit around the sun.There is not much we can do about it, and all the guff about CFCs and fossil fuels is rubbish where did the coal 600ft under ground come from it was originally a Forest on the surface of the earth. /forums/images/graemlins/smile.gif /forums/images/graemlins/confused.gif /forums/images/graemlins/confused.gif
 
http://www.geocraft.com/WVFossils/Carboniferous_climate.html
"Earth's climate and atmosphere have varied greatly over geologic time. Our planet has mostly been much hotter and more humid than we know it to be today, and with far more carbon dioxide (the greenhouse gas) in the atmosphere than exists today. The notable exception is 300,000,000 years ago during the late Carboniferous Period, which resembles our own climate and atmosphere like no other."

High CO2 levels, much warmer and wetter up to the Late Carb. The peat and coal deposits tied up a lot of the atmospheric CO2, which we are now releasing back into the atmosphere.

BTW I have lived and worked where the ozone levels plunge to zero in less than a week. It is no fun living with levels of UV that blister your face in 20 mins on a cloudy day. Doesn't really matter who caused it - you don't want it to happen in populated areas, so we all need to do something about it.

Sorry! Heavy stuff for the time of morning /forums/images/graemlins/smile.gif
 
As you say Heavy stuff at this time of day. A very interesting link. I do think it has more to do with the following than the minuscule efforts of the human inhabitants of this planet. Having said that we do need to be aware and the Powers that be really should take note. But will they.
Quote from your excellent link:
Today the Earth warms up and cools down in 100,000- year cycles. Geologic history reveals similar cycles were operative during the Carboniferous Period. Warming episodes caused by the periodic favorable coincidence of solar maximums and the cyclic variations of Earth's orbit around the sun are responsible for our warm but temporary interglacial vacation from the Pleistocene Ice Age, a cold period in Earth's recent past which began about 2 million years ago and ended (at least temporarily) about 10,000 years ago. And just as our current world has warmed, and our atmosphere has increased in moisture and CO2 since the glaciers began retreating 18,000 years ago, so the Carboniferous Ice Age witnessed brief periods of warming and CO2-enrichment.
 
I remember reading recently that the hole in the ozone layer was diminishing .......

and that the scientists are 'baffled'


mmmmmm /forums/images/graemlins/cool.gif
 
The shuttle was actually referred to - the orbiter (the shuttle itself) uses hydrogen and oxygen as fuel but the two boosters (the two skinny ones each side) that assist it on launch through the atmosphere are solid fuelled with a mix of powdered aluminum and ammonium perchlorate.

Someone else might be able to say what the combustion products of that are are.

John
 
Yes, quite likely. I was wondering though what burning aluminium and ammonium perchlorate gave as products.

John
 
The scientific community has no doubt about the fact that humans are affecting the climate.

Some people are simply dinasours, and probably still think the world is flat, and that women should not wear pants.

Charles
 
[ QUOTE ]
where did the coal 600ft under ground come from it was originally a Forest on the surface of the earth. /forums/images/graemlins/smile.gif /forums/images/graemlins/confused.gif /forums/images/graemlins/confused.gif

[/ QUOTE ]

.. that were living in a CO2 rich environment that I don't want to return to. All that Carbon is (or was) safely locked away under ground.

As for Hydrogen as a fuel. Where does the stuff come from? You need a bloody great powerstation to generate the electricity to pull the H and O out of its natural state (ie water). Hydrogen is an energy store, not a source.
 
The scientific community has no doubt about the fact that humans are affecting the climate.

This may or may not be the case. The excellent site referred to by Damo is well worth a look.

http://www.geocraft.com/WVFossils/Carboniferous_climate.html
Quote for the above website.

Our Future Written in Stone
--------------------------------------------------------------------------------

Today the Earth warms up and cools down in 100,000- year cycles. Geologic history reveals similar cycles were operative during the Carboniferous Period. Warming episodes caused by the periodic favorable coincidence of solar maximums and the cyclic variations of Earth's orbit around the sun are responsible for our warm but temporary interglacial vacation from the Pleistocene Ice Age, a cold period in Earth's recent past which began about 2 million years ago and ended (at least temporarily) about 10,000 years ago. And just as our current world has warmed, and our atmosphere has increased in moisture and CO2 since the glaciers began retreating 18,000 years ago, so the Carboniferous Ice Age witnessed brief periods of warming and CO2-enrichment.

Following the Carboniferous Period, the Permian Period and Triassic Period witnessed predominantly desert-like conditions, accompanied by one or more major periods of species extinctions. CO2 levels began to rise during this time because there was less erosion of the land and therefore reduced opportunity for chemical reaction of CO2 with freshly exposed minerals. Also, there was significantly less plant life growing in the proper swamplands to sequester CO2 through photosynthesis and rapid burial.

It wasn't until Pangea began breaking up in the Jurassic Period that climates became moist once again. Carbon dioxide existed then at average concentrations of about 1200 ppm, but have since declined. Today, at 370 ppm our atmosphere is CO2-impoverished, although environmentalists, certain political groups, and the news media would have us believe otherwise.

What will our climate be like in the future? That is the question scientists are asking and seeking answers to right now. The causes of "global warming" and climate change are today being popularly described in terms of human activities. However, climate change is something that happens constantly on it's own.

( If humans are in fact altering Earth's climate with our cars, electrical powerplants, and factories these changes must be larger than the natural climate variability in order to be measurable. So far the signal of a discernible human contribution to global climate change has not emerged from this natural variability or background noise. )

Understanding Earth's geologic and climate past is important for understanding why our present Earth is the way it is, and what Earth may look like in the future. The geologic information locked up in the rocks and coal seams of the Carboniferous Period are like a history book waiting to be opened. What we know so far, is merely an introduction. It falls on the next generation of geologists, climatologists, biologists, and curious others to continue the exploration and discovery of Earth's dynamic history-- a fascinating and surprising tale, written in stone.
 
Exactly. The dinosaurs brought it on themselves by breathing in and out, a major danger to the planet. And a vital lesson that *some* people who selfishly take loads of exercise simply refuse to learn.
 
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