BernardR wrote:Mr. O'Donnell says: "All changes are deleterious"
Really? When a child grows into adulthood, that is a "change"
. I do not know how it would be considered to be deleterious.
Okay, I was exaggerating. If you want, though, I can state that when a child grows into adulthood, he/she's that much closer to death. Is that not deleterious?
Quote:Wolf O'Donnell wrote:The concentration of Carbon Dioxide has reached 380 parts per million, which is 100 ppm above the agricultural revolution you referred to. We have never reached 350.
Mr. O'Donnell does not give a source for his information but I am very familiar with his figures and can say that, indeed, CO2 has reached 350 BUT THE IMPORTANT ASSUMPTION THAT MR. O'DONNELL MAKES IS THAT IT IS THE CO2 WHICH IS CAUSING THE GLOBAL WARMING.
Oh yes, how silly of me.
Source: Scientific American, June 2006.
And of course, I left out a key word at the end of my sentence. That phrase is, before. Of course, if you had actually read my post, you would have realised that what I had said didn't actually make sense without the word, before, in it.
Quote:There is no doubt that the temperature of the late twentieth century is greater than many previous century, but THIS CANNOT BE TAKEN AS A SIMPLE INDICATION OF OVERWHELMING GLOBAL WARMING as we are also coming out of a "Little Ice Age". The claim that the temperature is higher now than at any time throughout the past 1000 years seems less well substantiated, as the data ESSENTIALLY EXCLUDE OCEAN TEMPERATURES,NIGHT TEMPERATURES AND WINTER TEMPERATURES AND MOREOVER ARE BASED ALMOST EXCLUSIVELY ON NORTH AMERICAN DATA."
Dr. Lomborg is a political scientist, but let's forget that for now shall we?
What he says about excluding ocean temperatures is actually wrong.
Detection of Anthropogenic Climate Change in the World's Oceans Science 13 April 2001: Vol. 292. no. 5515, pp. 270 - 274.
What I've just stated is a reference to a research article detailing the exploits of Dr. Barnett. In it, he examines ocean temperatures and finds that no natural climate change could ever be responsible for the pattern of temperature increase he observed.
In fact, read the abstract yourself. He says the chance of it being due to natural causes is 5%. That's very low, low enough for scientists to confidentally state that the increase in ocean temperatures is due to anthropogenic causes and be correct at the same time.
In the very same issue, you'll find:
Anthropogenic Warming of Earth's Climate System. Science 13 April 2001:
Vol. 292. no. 5515, pp. 267 - 270.
Yet another study that pins the blame on anthropogenic gases, the majority of which is carbon dioxide.
Now, as for night temperatures, I can only find one so far. But that's because I'd rather not do an insane in-depth study to prove you wrong, because I and no doubt you have much better things to do.
So I'll just state the rice yields evidence.
Rice yields decline with higher night temperature from global warming PNAS, July 6 2004, vol. 101, no. 27, 9971-9975.
And no, the IPCC does not have a direct link to the research papers on global warming. You have to trail through their reports and examine their reference sections, which takes a very long time.
Quote:I would respectfully ask Mr.O'Donnell to learn just how much I have read by raising an issue in the "global warming" controversy.
Oh really? Well, there is one I can think up of off the top of my head and that's the supposed increase in solar temperatures. That could be a cause of global warming, but if the carbon dioxide levels are rising as well as increasing solar temperatures, surely that means our actions are merely making a natural process even worse?
Quote:Tthat the fear that the world will end in the next twenty years because of CO2 in the atmosphere is ABSURD!!!
No one ever said that.
The fear is that the changes to the environment will be irreversible and that many lives will be lost due to the climate change.
Now, I realise that natural selection and evolution actually calls for species to adapt in order to overcome climate change and that trying to make things stay the same is stifling natural selection and evolution.
However, just because evolution is how we came to be, does not mean it is how we should live.