No, man made global warming hasn't been proven. Nor has whether we actually exist or not. So.... what? You need 100% proof of something before you'll accept it? Seeing as you can't prove that we even exist (or the Earth for that matter), how are you going to prove that something that may or may not exist?
So you admit that man made global warming has not been proven....which by default means that your position is based on belief, not fact. And the fact that you remain unsure as to whether you exist or not is interesting.
However, if we accept that we exist without total proof that we actually exist, then maybe many other things we'll have to accept exist without 100% proof that it is true.
So you believe that an entity that does not exist could wonder about whether it exists or not? Doesn't the fact of its wondering prove its existence? No wonder you have been so easily duped by the AGW hoax.
Temperatures going up suggests nothing of the kind. It might suggest this to you.
You are looking at a very short term history.....the entire span of your graph is during an ice age. Here, have a look at a longer span so that you can get a more accurate feel for history and some context...Your graph barely goes further back than the early Holocene....the earth was already well in the ice age by then and had been for a good long time...as you can see, we are still in an ice age.
Now, looking at that graph, can you tell me that you are surprised that temperatures are climbing?....what do you think happens when a planet is working its way out of an ice age?
Based on what we believe the temperatures of the last 400,000 years, which appear to have entered a far more table climate, which in turn has allowed humanity to develop to a stage no other animals have ever made, we see that there have been these rather large increases in temperature that take place every 100,000 years, more or less.
400,00 years isn't long enough to give you any sort of realistic picture of the earth's temperature history. 400,000 years is only looking back into the present ice age..and not even to the beginning of it. As you can see, the decent into the present ice age began more than 25 million years ago. The earth has been cold for a very long time...what is surprising to you about the fact that we as a species happened along as the earth began exiting an ice age...as you can see, the long term forecast for earth is warming till such time as there is no ice at either of the poles...just as it has been through most of earth's history.
What they suggest is that temperatures have gone slightly higher, for a short period of time, than what we're experiencing right now. There's a big rise, then it hits the top for short period, then drops down dramatically again.
What they suggest is that you haven't looked far enough back in history to have any context. You are only looking back into the present ice age. As you can see from the longer term temperature history, the earth is still quite cold relative to its history and the warming we are experiencing is well well well within the boundaries of natural variability.
Look at the previous deep ice ages. Do you think the exit from them looked appreciably different from the exit that is currently happening?
From what we believe man made global warming, based on the amounts of CO2 and other greenhouse gases that we're pumping into the atmosphere and is staying there, is that temperatures should be rising. What I believe is happening naturally is that temperatures are dropping. Hence why they're staying at about the same point.
Again, refer back to the graph of the longer term history. See in the late Eocene when temperatures started falling....That was where the cooling began that led to the present ice age. The atmospheric CO2 at the time the temperatures started falling were at, or slightly over 1000ppm...quite a bit higher than the present 400. If CO2 were the temperature driver that climate science claims....how do you believe a 30 million year long ice age began with CO2 levels more than double the present level?
The question is, what is going to happen in the future?
Considering the cyclic nature of temperature on earth...look at the long term temperature history and tell me what you think is going to happen. I predict that the warming is going to continue long term with interspersed cold periods till such time as, like every time before, it gets so warm that no ice exists at either pole.
We know that the PH levels of the Oceans are changing dramatically, and that the oceans are at threat, the oceans take up a lot of the slack for the CO2 in the atmosphere. What happens when the oceans die and no longer bother to take up this CO2?
We also know that most of the life in the oceans today evolved at a time when the atmospheric CO2 levels were in excess of 3000ppm...and we know that the oceans were teeming with life when the atmospheric CO2 levels were even higher than that...closer to the 5 or 6000ppm level. Ocean acidification is just another horror story concocted by alarmists....if we burned every bit of carbon on the planet, we would barely make a bit of difference in the ocean's pH. It is your lack of knowledge, and complete lack of skepticism (read critical thinking skills) that makes you susceptible to the fear mongering. Do you know what the opposite of skeptical is?....its gullible.
Will the CO2 in the atmosphere make the greenhouse effect so much worse that the temperatures rise to a level that cause massive problems on the Earth? It's possible.
Again...to answer your question...look back to the past...did high CO2 levels create the havoc that alarmists today claim? What did life on earth look like just before the temperatures started falling into the present ice age? Ever asked yourself that? Well, during the Eocene, palm trees grew as far north as Alaska...Crocodiles lived above the Arctic Circle. The ancestors of horses, rhinos, etc, wandered vast plains. The earliest members of the primate order appeared during this time as well...where might we be now had the ice age not started and put a halt to our progress for 30 million years? In general, life flourished across the entire globe just prior to the beginning of the present ice age. So, what makes you think that it won't flourish again...further, what makes you believe that we can do anything about it?
The Earth has been hotter
Ice-Free Arctic in Pliocene, Last Time CO2 Levels above 400 PPM
They say it was about 60 degrees in the summer. Are humans going to be able to cope with 60 degree weather, I don't think so, 40 more or less kills us.
As you can see from the graphs I gave you, life on earth flourishes when it's warm...cold as we are presently experiencing is the killer.
You make a claim of the poles having been ice free. It's not easy to search for this as many other things get in the way, similar meanings of words, but what I did find suggests the NO, in the past 400,000 years the poles have not been ice free.
That's because for the past 400,000 years and longer the earth has been locked in an ice age. Refer back to the graph..how far do you think you would need to go back to reach a time when no ice existed at at least one of the poles?
"There is no paleoclimatic evidence for a seasonally ice free Arctic during the last 800 millennia."
Again, you are still just looking back into the present ice age....look a bit further back....
As for your statement about ice ages with CO2 levels higher than 1000 doesn't necessarily mean much. There are plenty of other factors which might not be at play right now. The impact of CO2 on the current, stable system is the problem here. What may happen, that we might not be able to control, the unknown, is the problem here.[/quote
Of course there were plenty of factors...and there still are.. CO2 is not the boogie man...CO2 is plant food...Ice ages began with CO2 ten times as high as it is today. At present we are just beginning to scratch the surface of what drives the climate here.....to assume that it is CO2 is a political assumption...not one based in science or a serious look at the climate history of earth.
You've made another claim about the air being 4000ppm and ocean live evolving then. I'd like to see your evidence.
Most modern sea life had evolved by the early Cretaceous period...a time when atmospheric CO2 levels were very close to 4000ppm.
