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#993491 - 30th Nov 2015 10:25pm Global Warming
granny Offline

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Registered: 29th Jun 2011
Posts: 13483
Loc: Wirral

Climate change conference and all it involves, might not see much in the way of rapid results. However, certain countries like China and Saudi Arabia are building massive solar farms (for want of a better word).

Can anyone say how solar panels will not contribute to global warming any more or less than the damage caused by the pollutants we excrete already ? The way I see it, is that the solar panels must bounce the heat from the sun , back into the atmosphere making the climates hotter, causing different problems. There again, I am not a scientist !
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#993494 - 30th Nov 2015 10:44pm Re: Global Warming [Re: granny]
venice Offline

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Registered: 21st Jul 2011
Posts: 2420
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Dont know about the technicalities granny, but I was amazed at the extent of the farms as well. Quite astonishing .

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#993498 - 1st Dec 2015 12:50am Re: Global Warming [Re: granny]
diggingdeeper Offline

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Registered: 9th Jul 2008
Posts: 9550
Loc: Birkenhead
The energy is absorbed and converted (not very efficiently in a solar panel), don't forget that we can't see most of the energy that arrives from the sun. The reflected energy is probably comparable to the reflection off the sea or the re-radiation from land.

I've been reading up on global warming quite a bit recently as I am a non-believer in man-made global warming. The more I read, the more incredibly ridiculous a lot of the claims are.

I am yet to find any article that explains how a greenhouse gas increases the earth's temperature, it is always washed over. The very basic comments actually show why greenhouse gases should cool the earth.

The biggest greenhouse gas by far is water vapour, it has the highest quantity (by far) and also absorbs more energy than CO2.
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#993508 - 1st Dec 2015 9:05am Re: Global Warming [Re: granny]
Greenwood Offline
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Registered: 20th May 2011
Posts: 587
Loc: Greasby
I think with some solar farms the sun's rays are focused onto a collector which uses that heat to boil water to make steam to power turbines to generate electricity.

If I remember rightly methane is a very potent greenhouse gas, much more so than CO2; there is an awful lot of that locked up in permafrost, apart from what's emitted by intensive cattle farming and so forth, and rotting matter in landfill. A moderate rise in temperature will add that to the mix.

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#993517 - 1st Dec 2015 9:47am Re: Global Warming [Re: granny]
joeblogs Offline
Old Hand

Registered: 8th May 2011
Posts: 343
Loc: bebington
its all a con

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#993528 - 1st Dec 2015 10:06am Re: Global Warming [Re: joeblogs]
snowhite Offline

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Registered: 31st Jan 2014
Posts: 5535
Loc: Wirral
Originally Posted By: joeblogs
its all a con
withthat totally agree.

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#993540 - 1st Dec 2015 11:05am Re: Global Warming [Re: Greenwood]
granny Offline

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Registered: 29th Jun 2011
Posts: 13483
Loc: Wirral
Originally Posted By: Greenwood
I think with some solar farms the sun's rays are focused onto a collector which uses that heat to boil water to make steam to power turbines to generate electricity.



This is where I fail to understand. The sun's rays are one thing, but the heat from the sun's rays usually get absorbed into the earth, desert or oceans. In these solar farms, is the heat being absorbed as well as the rays. I find that difficult to understand ? Even reading the simplest explanation for 'kids' is a bit daunting, to say the least !!

http://discoverykids.com/articles/how-does-the-sun-provide-heat-and-light/

The energy gives off different kinds of light, like infrared light, ultraviolet light and visible light. Microwaves, radio waves and X-rays also come from the sun. The sun also gives off energized particles that make up solar wind. The energy from solar wind warms the Earth and influences the weather
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...and those who were seen dancing were thought to be insane by those who could not hear the music.FN

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#993541 - 1st Dec 2015 11:44am Re: Global Warming [Re: granny]
diggingdeeper Offline

Wiki Guardian

Registered: 9th Jul 2008
Posts: 9550
Loc: Birkenhead
Heat and light from the sun is the same thing, just a different colour.
_________________________
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

When the debate is lost, slander becomes the tool of the loser. Socrates

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#993551 - 1st Dec 2015 2:01pm Re: Global Warming [Re: diggingdeeper]
venice Offline

Forum Master

Registered: 21st Jul 2011
Posts: 2420
Loc: Wirral
Originally Posted By: diggingdeeper


I've been reading up on global warming quite a bit recently as I am a non-believer in man-made global warming. The more I read, the more incredibly ridiculous a lot of the claims are.

I am yet to find any article that explains how a greenhouse gas increases the earth's temperature, it is always washed over. The very basic comments actually show why greenhouse gases should cool the earth.



My OH has also read everything he can get his hands on re the topic and come to the same conclusion. It causes terrible rows with the younger end of the family who think he is 'deliberately blind to the situation' . He's set them the same problem youve highlighted -- to bring out a credible scientific article proving exactly how global warming is being caused by humans, and is still waiting for them to provide it!!

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#993566 - 1st Dec 2015 3:51pm Re: Global Warming [Re: Greenwood]
diggingdeeper Offline

Wiki Guardian

Registered: 9th Jul 2008
Posts: 9550
Loc: Birkenhead
Originally Posted By: Greenwood
If I remember rightly methane is a very potent greenhouse gas, much more so than CO2


That is another widely quoted myth. Methane only has two very narrow absorption frequencies so most of the visible and infrared spectrum goes straight through it.

Here are three graphs showing what frequencies water vapour, CO2 and methane absorb.


Attachments: Viewing Permissions May Apply. Click Me
h2oabsoq-s.jpg

co2absoq-s.jpg

methabsx-s.jpg


_________________________
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

When the debate is lost, slander becomes the tool of the loser. Socrates

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#993570 - 1st Dec 2015 4:02pm Re: Global Warming [Re: granny]
Greenwood Offline
Smartchild

Registered: 20th May 2011
Posts: 587
Loc: Greasby
Interesting! Perhaps there is a lot less methane than CO2. Stil wouldn't like to be on the tundra when it starts to thaw, though - whiffy...

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#993571 - 1st Dec 2015 4:30pm Re: Global Warming [Re: granny]
diggingdeeper Offline

Wiki Guardian

Registered: 9th Jul 2008
Posts: 9550
Loc: Birkenhead
And here is an even more interesting graph showing the regular cycles of CO2 and temperature long before man started polluting the atmosphere.

An intersting aspect is that it shows we don't really have ice-ages, we have the opposite, hot eras.



Attachments: Viewing Permissions May Apply. Click Me
tempco2-2.jpg


_________________________
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

When the debate is lost, slander becomes the tool of the loser. Socrates

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#993775 - 3rd Dec 2015 3:30pm Re: Global Warming [Re: granny]
dva99999 Offline
Enthusiast

Registered: 12th Dec 2010
Posts: 107
Loc: Oxton
Well I think no matter what we do, Mother Nature always finds a way.

http://www.bbc.co.uk/news/science-environment-32452085

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#993861 - 3rd Dec 2015 10:04pm Re: Global Warming [Re: dva99999]
granny Offline

Wiki Master

Registered: 29th Jun 2011
Posts: 13483
Loc: Wirral
Originally Posted By: dva99999
Well I think no matter what we do, Mother Nature always finds a way.

http://www.bbc.co.uk/news/science-environment-32452085



You are probably right, providing she is given enough time to heal the wounds.
That Chernobyl is encouraging. Last time I saw pics of it, it was just laid to waste. Dreadful and a very scary peep into what the future could hold.
_________________________
...and those who were seen dancing were thought to be insane by those who could not hear the music.FN

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#994169 - 8th Dec 2015 12:01am Re: Global Warming [Re: granny]
Alonso Offline
Addict

Registered: 29th Dec 2010
Posts: 255
Loc: Moreton
Piers Corbyn- the brother of Jeremy- was interviewed last Thursday night by Andrew Neil on the BBC. Piers runs a weather forecasting company. It must be successful as people organising company events and who need to know what the weather conditions are likely to be actually pay him for his forecasts. That said, the guy doesn't believe in the man made climate change/global warming stuff. No matter how much Neil pressed him, he would not be shaken from his belief that it is a con.
The reason the scientists are promoting their case -as if it was some new form of religion - is because, he believes, that if our carbon emissions are greatly reduced, so will our productivity. Thus the third world countries will have an opportunity to exploit our weakness enabling them to benefit from a greater share of the world's wealth. The words I have used are my choice but in essence that is what he was saying.
I was quite surprised to hear his very forthright views as I would have thought he would be inclined to share in his brother's left wing ideology. He was certainly suggesting that many of the leading scientists promoting the climate change cause are left wing.

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