No, I'm not. CO2 has increased more than temperature, but both have increased, as you can see from the graph on the link I included next to that statement.
But temperatures haven't increased significantly and especially not when you compare from late 1800 to mid 1900 thats almost the same increase around the 0.5 long before any significant co2 emissions from us.
You're saying a 1 degree increase over a hundred years is not significant? That's an unprecedented rate of change.[1] And again, most of the effect from the greenhouse gasses released over the past 50 years hasn't been seen yet, because it affects the rate of change of temperature, not the instantaneous temperature. Unfortunately by the time the effect is impossible for you to ignore, it will be too late to prevent massive damage. Also unfortunately, that damage will impact all of us, not just those who don't believe climate change is an issue.
Anyway, this will probably be my last comment in the thread, since I'm getting the impression you're not really open to this information, but hopefully you'll prove me wrong.
1-degree increase first 0.5 from late 1800 to mid 1900 when we didn't emit much CO2 second 0.5 degree where we emitted a lot.
You were the one claiming your graph illustrated something.
You have no basis for this claim:
"And again, most of the effect from the greenhouse gasses released over the past 50 years hasn't been seen yet,"
Of course, it has and as we have learned it doesn't have as big an impact as we thought it had which is why they had to adjust it down.
By your logic, the increase in temperature from the first half of the last century was also then delayed from earlier in the 1800s where we used even less.
So perhaps you should consider if it's you not me who should be open to new information.
The relationship between greenhouse gas concentration and heat transfer is logarithmic, not linear, so it's not surprising that we don't see a linear relationship between CO2 concentration and temperature rise. Also, once again, greenhouse gasses affect heat transfer, which affects the rate of change of temperature, rather than temperature directly. That's my basis for the claim that the full effect of the gasses being released now is yet to be seen. Finally, temperature is noisy and in the short term is impacted by many factors, so looking at a short term (in geological terms) graph, an increase may not seem large compared to the noise. However, if you look at the recent increase on a longer time scale, you can see that it is unprecedented. And it is entirely consistent with what is scientifically expected based on atmospheric CO2 levels. If you'd like to understand why more deeply than my outline here, this is a good primer: https://skepticalscience.com/empirical-evidence-for-co2-enha...
I'm always open to new information. I'm no expert in this stuff, so I can certainly learn more—learned a couple of details while reading to try to fully answer your question actually. And it's a reasonable question why the temperature increase over the past 100 years (in particular broken into two periods) isn't proportional to the C02 increase over the same time. I think I've fully answered it now though; is there anything specific that I wrote above or that's included in that link that you dispute?
No it doesent explain it. I know the answer but its not convincing and no the models so NOT actually predict anything without the curve fitting. They are more wrong than right. Yes its logaritmic but question is how much of the increase is man made how much is natural. This is the question we cant answer. If 10% of the change is caused by humans its a very different thing than if 90% is human as one scenario means we can do something and should, while the other mean its waste of time. As long as that number isnt clear i wont loose my sleep over it.