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originally posted by: Phage
a reply to: superman2012
But you seem to think that acknowledging that global temperatures "may" be rising is problematic. Why? Why is planning for that so abhorrent? How does saying "it's not 100% certain" accomplish anything at all?
No one is claiming that. But there are those who deny AGW who say "What next? Legislate the CO2 we exhale?"
Don't claim cow farts are the major cause of global climate change without proof.
Water vapor only remains in the cycle if temperatures allow it (I think you know that).
www.nasa.gov...
NASA scientists have found that cirrus clouds, formed by contrails from aircraft engine exhaust, are capable of increasing average surface temperatures enough to account for a warming trend in the United States that occurred between 1975 and 1994.
originally posted by: mc_squared
a reply to: superman2012
I JUST showed you proof of the physical mechanism - aka the causation and you went right back to talking about temperature records and how "correlation doesn't equal causation".
Yikes
originally posted by: Phage
a reply to: superman2012
You seem to be denying that there's a problem. "Prove that it's warmer now that it was 300 years ago. Meh, it was warm before, it'll be warm again. So what?"
No one is claiming that. But there are those who deny AGW who say "What next? Legislate the CO2 we exhale?"
Don't claim cow farts are the major cause of global climate change without proof.
What more "proof" do you want? How long are you willing to wait for it?
Right. And water vapor that is not in the atmosphere does not contribute to radiative forcing.
I would think it remains as water in some state (not necessarily remaining in the atmosphere).
You should know that cirrus clouds are not composed of water vapor. The article is about radiative forcing induced by high altitude clouds (ice crystals).
This is the actual NASA comment I mentioned
What more "proof" do I want? I'll settle for definitive proof. I might be waiting many lifetimes for that though. At least they are keeping better records for future generations.
originally posted by: Phage
a reply to: superman2012
What more "proof" do I want? I'll settle for definitive proof. I might be waiting many lifetimes for that though. At least they are keeping better records for future generations.
So...it's their problem then.
Got it.
originally posted by: Phage
a reply to: superman2012
I'm guessing you don't have kids.
originally posted by: mc_squared
a reply to: superman2012
What "longer period of time"? Do you realize what's even being proven here - the physical mechanism of the enhanced greenhouse effect happening right now. It's being observed in real time. It has nothing to do with temperatures 200,000 years ago.
If you want a longer period of time then maybe learn a little bit about John Tyndall, who first proved this effect in 1859. His experiment has been repeated now for over 150 years.
originally posted by: Phage
a reply to: superman2012
Not anymore.