USA’s top Climate Change Expert Lied

[pjclarke]

Can you help us out with this 25% increase in CO2 levels?

Here's the 'flat' 20 year global temp

Wood for Trees: Interactive Graphs

And the rise in CO2 over the same period:-

http://www.woodfortrees.org/plot/esr...l-co2/last:240

as I said actually from c350 to 400ppm, more like 12.5%. In future perhaps we just assume that about half of the points made by this poster are wrong?

[EternalOptimist]

I dont think he is far wrong.
CO2 emissions increased quite fast, 25% seems like a reasonable ballpark figure, i would have to check (I know he said co2 and not co2 emissions)

the point is, co2 and co2 emissions are rising rapidly. According to the catastrophists, the planet should be warming fast. it isnt.



Dont forget, your Nasa hero, James Hansen predicted a 20 degree rise in temps by 2025.

thats twenty degrees in the next 11 years. Do you honestly believe that will happen? honestly

[original PM]

I dont think he is far wrong.
CO2 emissions increased quite fast, 25% seems like a reasonable ballpark figure, i would have to check (I know he said co2 and not co2 emissions)

the point is, co2 and co2 emissions are rising rapidly. According to the catastrophists, the planet should be warming fast. it isnt.



Dont forget, your Nasa hero, James Hansen predicted a 20 degree rise in temps by 2025.

thats twenty degrees in the next 11 years. Do you honestly believe that will happen? honestly

If there is money to be made I will believe anything!

[BlasterBates]

Here's the 'flat' 20 year global temp

Wood for Trees: Interactive Graphs

And the rise in CO2 over the same period:-

Wood for Trees: Interactive Graphs

as I said actually from c350 to 400ppm, more like 12.5%. In future perhaps we just assume that about half of the points made by this poster are wrong?

25% of man's total contribution approx 30 ppm ..

Better be half wrong than totally ...

[pjclarke]

I dont think he is far wrong.

The original statement was >100% out. CO2 rose from 356ppm in 1993 to 394ppm in January this year just over 10%, he stated 25%. Data is here

Trends in Carbon Dioxide

Admirably, he's clarified that he meant 25% of the total increase has occurred in the last 20 years, which is more plausible. Short term trends (anything < 30 yrs really) can mislead, for example for the first 15 of the last 20 years, temperatures rose at twice the average predicted rate:-

Wood for Trees: Interactive Graphs

the point is, co2 and co2 emissions are rising rapidly. According to the catastrophists, the planet should be warming fast. it isnt.

Straw Man. Imagine there was no greenhouse gas warming influence, woiuld the graph be a horizontal line? Of course not, there are fluctuations due to ocean circulation changes, the solar cycle and many other natural factors. Over the short term, natural variability can mask the more gradual increase. And yes, the models do predict such plateaux:-

http://www.scilogs.de/klimalounge/fi...Iscenario1.png

Dont forget, your Nasa hero, James Hansen predicted a 20 degree rise in temps by 2025.

Calling BS on that. The most pessimistic projections predict 5-6C by the end of the century. Waste of time asking for your source, I guess.

[EternalOptimist]

Call names all you want PJ.
Out of curiosity, what would your reaction be if he DID make that prediction ?

[EternalOptimist]

wait ...panic is over. he was talking about farenheight, not centigrade


phew. panic over, i guess


i wonder why he used farenheight

[EternalOptimist]

the source is testimony to the senate in 1988. 20f in northern latitudes possible from 2025 - 2050

i supose we should be gracious and allow the old fogie 36 years

[pjclarke]

Out of curiosity, what would your reaction be if he DID make that prediction ?

Assuming it was made as a serious, plausible prediction and not say, a response to a 'what if' question from a journalist or some such that has since been misconstrued then I would apologise and revise my opinion of him.

Odd question, assuming it did not come to you in a dream, where did you see Hansen's prediction?

[Old Greg]

wait ...panic is over. he was talking about farenheight, not centigrade


phew. panic over, i guess


i wonder why he used farenheight

Can you share the linky to the research?