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Originally Posted by The PNP
This one-off special could be well worth a watch.
STOP EMITTING CO2!
There has always been climate change - even before the Industrial Revolution - and there will always be climate change.
Does anyone know why Greenland was so named?
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Originally Posted by duncet
There has always been climate change - even before the Industrial Revolution - and there will always be climate change.
Does anyone know why Greenland was so named?
Sea-level was stable for several thousand years until the industrial revolution, but has risen 20cm since.......and it's still rising!
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Originally Posted by DixieRoy
I have thought for a while that mankind is already past the point of no return. We are slowly but surely killing our planet.
In a few thousand years, or maybe even sooner Earth will be a hot dead rocky planet, very similar to what Venus is now.
I like David Attenborough, and applaud his efforts, but I do think that his words will fall upon deaf ears.
It will need more than man to do that, Yep we could kill ourselves off, but the planet will recover for it's next evolution. Not sure that's a bad thing, we are like a plague on the planet.
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Originally Posted by The PNP
Sea-level was stable for several thousand years until the industrial revolution, but has risen 20cm since.......and it's still rising!
Wrong! According to the studies of Hallam 1984 and also by Vale et al in 1977, etc., who made a study of the oceans and mapped them back to 500 million years, our oceans are at he lowest point that they have ever been. The Iapetus ocean sutured the British Isles, evidence of sea fossils can still be found in the areas of Scotland and the Lake District. The magnetic poles have reversed a number of times and when this occurs the sea levels rise. On a very gradual process, the Cornish end of Britain is slowly sinking while the top end of Scotland is rising. Also the CO2 concentrations are the lowest that they have been since the carboniferous period at which time the levels were a little higher than they are today. If these concentrations of CO2 fall lower in the oceans than they are at present - then extinctions start to occur. During the last ice age plants died out the count of CO2 during this period was 180 parts per million (ppm) when photo synthesis drops low, the count now is 400ppm, and plants are flourishing. Space shuttle alarms are set for 5000ppm - meaning that if CO2 were to rise above this an alarm would be set off since breathing would be affected. In submarines, the CO2 alarms are set to 8000ppm before it is considered harmful. To give an example, an acre of Paulownia trees that take 5 years to grow to a harvestable height, requires all the atmospheric CO2 from 20 cubic kms of air per year. This is a distance of that acre x three times the distance to the moon.
The CO2 concentration increased after the second World War - when temperatures decreased. Also during the period of 1300 - 1900, the River Thames froze over completely 23 times, when coal burning was the principle heating fuel for domestic and industrial purposes. Coal exudes CO2.
Ask any farmer - increases in CO2 is great for vegetation, produce etc.,
The gas itself cannot be created from nothing, the gas released today is the same as it was in parts previously, and by any or all chemical interference or human effort is only being returned to the atmosphere from whence it came.
The fastest population increase occurred during the Holocene optimum when the temperatures were 4 degrees higher than at the present time.
I prefer to believe in factual Science which disproves Government led reports.
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Originally Posted by Ceam
It will need more than man to do that, Yep we could kill ourselves off, but the planet will recover for it's next evolution. Not sure that's a bad thing, we are like a plague on the planet.
Says the erroneous prophet of doom!
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Originally Posted by The PNP
This one-off special could be well worth a watch.
STOP EMITTING CO2!
.
Never, ever, argue with an idiot. They'll drag you down to their level and beat you with experience
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Originally Posted by Rigsby
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Erm, a third of UK electric is now created from wind/solar etc - and that share is growing. A fact which has knocked power generation into 2nd place behind motor vehicles as biggest C02 emitter!
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Originally Posted by said
Wrong! According to the studies of Hallam 1984 and also by Vale et al in 1977, etc., who made a study of the oceans and mapped them back to 500 million years, our oceans are at the lowest point that they have ever been.
Well, there's only one way they can go from there - UP! Which doesn't bode so well for folks living in low-lying coastal areas.....Btw, how few feet above sea-level is your place?
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Originally Posted by The PNP
Erm, a third of UK electric is now created from wind/solar etc - and that share is growing. A fact which has knocked power generation into 2nd place behind motor vehicles as biggest C02 emitter!
I recently watched a TV doc on how they installed a wind generator as part of a farm in the North Sea.
The technology was amazing as were the custom made barges and cranes required to install such a massive structure.
Then you have to think about the 'carbon footprint' in not only the installation of one but the actual design, construction and transport of one, from a paper drawing to a working unit in the North Sea, so can a single wind generator create MORE power in its lifetime than used to create it, and thus produce a lower carbon footprint over its lifetime, than created in its making and installation?
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Originally Posted by said
Wrong! According to the studies of Hallam 1984 and also by Vale et al in 1977, etc., who made a study of the oceans and mapped them back to 500 million years, our oceans are at he lowest point that they have ever been.
Wrong! According to the Hallam curve, 250 million years ago the sea level was lower. Vail's (not "Vale") study also shows a drop in sea levels during this period. Bear in mind that if you're going that far back in earth's history, you have to take into account the changes in sea level due to both the formation of continents, and continents breaking away.
It's scientifically accepted that from 3,000 years ago sea levels were generally stable until the onset of the industrial revolution... so PNP's statement is correct.
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Originally Posted by The PNP
Erm, a third of UK electric is now created from wind/solar etc - and that share is growing. A fact which has knocked power generation into 2nd place behind motor vehicles as biggest C02 emitter!
Obviously you do not read the posts on this site - I have explained in detail about CO2 emmissions.
Re alternative power sources - Good! Then we shall all be looking for a large decrease in our electricity bills then.Right?
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Originally Posted by said
Obviously you do not read the posts on this site - I have explained in detail about CO2 emmissions.
And we all know that you're the leading scientific authority in this field, with peer reviewed data to support your assertions.
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Originally Posted by seivad
And we all know that you're the leading scientific authority in this field, with peer reviewed data to support your assertions.
Oooh! Couldn't you sleep? That been on your mind all night has it? No need to checkup on anything - it is part of my field and studied in depth! Now you can go back to sleep.
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Originally Posted by said
Oooh! Couldn't you sleep? That been on your mind all night has it? No need to checkup on anything - it is part of my field and studied in depth! Now you can go back to sleep.
I can see that from the accuracy of your comments. If it gets any bigger, that field of yours is in danger of becoming another continent.
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Originally Posted by *concerned*
I recently watched a TV doc on how they installed a wind generator as part of a farm in the North Sea.
The technology was amazing as were the custom made barges and cranes required to install such a massive structure.
Then you have to think about the 'carbon footprint' in not only the installation of one but the actual design, construction and transport of one, from a paper drawing to a working unit in the North Sea, so can a single wind generator create MORE power in its lifetime than used to create it, and thus produce a lower carbon footprint over its lifetime, than created in its making and installation?
Think I caught that doc also, impressive job! Btw, I hear renewable energy is becoming cheaper than traditional fossil energy.
Don't forget to factor in the CO2 emitted during traditional power station construction. All that concrete used in cooling towers etc will have a sizeable carbon footprint - as will concrete and steel used to construct nuclear power stations.
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