Edit to add a comment on the article.
Water vapor and clouds are the major contributors to Earth's greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the
planet's temperature ultimately depends on the atmospheric level of carbon dioxide.
They take a few gases that have a green house effect and say they are responsible.
Saying that because without them water vapor wouldn't be an issue.
That's like saying there wouldn't be a greenhouse effect without a sun.
The planets atmospheric temperatures ultimately depend on the oceanic temperatures. Which do receive some influence from the atmosphere yet they do
not get much effected by it.
The oceans are directly effected by sunlight as they are absorbing almost all of it and what it gives back is given as heat that effect atmospheric
temperatures and not vice versa.
Example : Without heat from the sun at the equator warming up the water there wouldn't be a thermodynamical conveyor belt that would transfer that
heat up north and create a moderate climate in Northern Europe.
If the Gulfstream stops temperatures plummet and Europe would be covered with snow and ice every year as far down as as the Monaco.
I understand the oceans have been cooling the last decade or so ???
I feel the urge of posting my 2 cents on topic, So...
First I must say that I'm highly skeptical about man made emissions of Co 2 for being responsible for our changing climate.
A few reasons for my current opinion :
1. Ice core data shows that on several occasions in the past, Co 2 increase came after a temperature increase.
This is an issue that is often misunderstood in the public sphere and media, so it is worth spending some time to explain it and clarify it. At least
three careful ice core studies have shown that Co 2 starts to rise about 800 years (600-1000 years) after Antarctic temperature during glacial
terminations. These terminations are pronounced warming periods that mark the ends of the ice ages that happen every 100,000 years or so.
Does this proof Co 2 is not responsible ? No.What is does proof is that Co 2 isn't the only source of climate warming around.
Since we just snapped out of a little ice age from a couple of centuries ago. The rise of Co 2 could be an effect of the warming up.
2. The primary green house gas of our planet is water vapor.
Everything in our climate is greatly influenced by water vapor. Ever noticed that it is warmer on a cloudy night, where it would freeze when the sky
is clear ?
Any warming would result in more water vapor which would be a catalyst for even more warmth staying around.
Weird thing is that I understand the ocean temperatures have not been rising for at least the last decade and that they are even cooling. ( Just a
There is evidence for cosmic rays influence on cloud forming.. Enough to start a study, based at CERN ( Same guys as the large hadron collider ).
Everything you want to know about The CLOUD project is in here . I just posted the thread last week.
Don't get your hopes up. It's a study in progress.
3. There are more potent green house gases out there which are not getting the same attention.
Which is trapped within massive amounts of so called "sea ice" or methane clathrate. This stuff can violently explode and the methane escapes its icy
prison and gets released in the atmosphere.
Thawing permafrost can release nitrous oxide, also known as laughing gas, a contributor to climate change that has been largely overlooked in the
Arctic, a study showed on Sunday.
Both gases are nowhere near the same amount of Co2 that gets released by mans hand, but have much more effect at smaller concentrations. The fact is
that nature has these gases trapped within the earth in unimaginable large amounts ready to gets released in the atmosphere in the blink of an eye.
4.The solar cycle
The following link is a scientific work.
Reviews in Geophysics
Accepted April 2010
Solar influence on climate.
In short. They basically say that they do not know enough about the solar influence to be sure about anything, but they think the effect a currently
under estimated. Go figure.
5.Co 2 is a natural gas, just like oxygen.
Trees breath Co 2 during the day. Well... everything with the ability to photosynthesize does. Once our plant was full of flora. We have destroyed a
very big part of it. Maybe it's time to start planting again. Who knows ?
What I understand is that our climate is a chaotic build up of massive amounts of different stuff all interacting with each other.
We simply do not have a complete understanding of it and new studies and evidence keeps telling us that its not working as simple as they thought it
did. Any blaming of Co 2 is IMO based on an incomplete understanding of our climate.
At the same time all of the above is happening we could very well be thrown back into an ice age.
Ice age now.
The fact is that our steady climate which has benefited us for so long... Well, it isn't the norm as we always thought it was. With the switch of a
button our climate can change and has changed in the past.
I'm not saying the climate change is man made or that it isn't man made. We simply don't know for sure.
reply to post by SkyMarshall
The Venus example is also ridiculous come on !
How can such a slight raise on earth cause such a big change. Where on Venus temperatures are only 400 degrees Celsius when the entire atmosphere
seems to be carbon dioxide.
Venus does also have a thick blanket of clouds to keep the warmth in. As far as I know Carbon dioxide is a transparent and odorless gas.
Please explain ?
edit on 10/16/2010 by Sinter Klaas because: (no reason given)
edit on 10/16/2010 by Sinter Klaas because: (no reason