You bring up the notion of CO2 forcing yet you neglect the fact that a warmer Nearly ice free arctic did not cause a runaway warming from carbon and methane release from permafrost. How come that did not occur? Furthermore, the amount of forcing co2 has on climate is far from certain. I know Hansen has it pegged at 3C doubling in the short with 6C in the long term, but others have it much less. Lets not forget the "missing heat" which Trenberth has burried in the deep oceans yet the Levitus o
Come now. The first quote i gave you the headline from science daily hardly a denialist blog
Then the second quote is from the actual study from the university of Copenhagen
All I am saying is that 8000 years ago we didn't have a tipping point when sea ice. Was less than half of what it was in 2007. No permafrost methane leak, and a warmer Arctic dud not lead to runaway warming in the middle latitudes. Saying that, LONG TERM exposure to more atmospheric CO2 may inevitably result in a warmer w
@chicagogeorge nevermind. I found it. Global warming deniers love this because a quick read of the abstract and confirmation found in popular science reporting confirms in their minds that everything will be ok. Unfortunately, they don't read the entire original paper. While yes, the ice was less....in Greenland, they do admit that due to wind variations it may well have acumulated elsewhere. Its also important to remember that CO2 forcing didn't exist back then. Apples and oranges.
@chicagogeorge Could you please provide me the citation to the original paper? When you whack your quote into google, all I seem to get is endless denier blogsites.
"During the so-called Holocene Climate Optimum, from approximately 8000 to 5000 years ago, when the temperatures were somewhat warmer than today, there was significantly less sea ice in the Arctic Ocean, probably less than 50% of the summer 2007 coverage, which is absolutely lowest on record:
". The good news is that even with a reduction to less than 50% of the current amount of sea ice the ice will not reach a point of no return"
Large Variations in Arctic Sea Ice: Polar Ice Much Less Stable Than Previously Thought, Study Finds
ScienceDaily (Aug. 4, 2011) — For the last 10,000 years, summer sea ice in the Arctic Ocean has been far from constant. For several thousand years, there was much less sea ice in The Arctic Ocean -- probably less than half of current amounts.
hehehe you said shrinkage
chronDiggity 2 months ago
Sorry if my comments look weird on my I phone on the train..... Thank you for you time.
chicagogeorge 3 months ago
You bring up the notion of CO2 forcing yet you neglect the fact that a warmer Nearly ice free arctic did not cause a runaway warming from carbon and methane release from permafrost. How come that did not occur? Furthermore, the amount of forcing co2 has on climate is far from certain. I know Hansen has it pegged at 3C doubling in the short with 6C in the long term, but others have it much less. Lets not forget the "missing heat" which Trenberth has burried in the deep oceans yet the Levitus o
chicagogeorge 3 months ago
Come now. The first quote i gave you the headline from science daily hardly a denialist blog
Then the second quote is from the actual study from the university of Copenhagen
All I am saying is that 8000 years ago we didn't have a tipping point when sea ice. Was less than half of what it was in 2007. No permafrost methane leak, and a warmer Arctic dud not lead to runaway warming in the middle latitudes. Saying that, LONG TERM exposure to more atmospheric CO2 may inevitably result in a warmer w
chicagogeorge 3 months ago
@chicagogeorge nevermind. I found it. Global warming deniers love this because a quick read of the abstract and confirmation found in popular science reporting confirms in their minds that everything will be ok. Unfortunately, they don't read the entire original paper. While yes, the ice was less....in Greenland, they do admit that due to wind variations it may well have acumulated elsewhere. Its also important to remember that CO2 forcing didn't exist back then. Apples and oranges.
uknowispeaksense 3 months ago
@chicagogeorge Could you please provide me the citation to the original paper? When you whack your quote into google, all I seem to get is endless denier blogsites.
uknowispeaksense 3 months ago
@uknowispeaksense
From the study above:
"During the so-called Holocene Climate Optimum, from approximately 8000 to 5000 years ago, when the temperatures were somewhat warmer than today, there was significantly less sea ice in the Arctic Ocean, probably less than 50% of the summer 2007 coverage, which is absolutely lowest on record:
". The good news is that even with a reduction to less than 50% of the current amount of sea ice the ice will not reach a point of no return"
chicagogeorge 3 months ago
Science News
Large Variations in Arctic Sea Ice: Polar Ice Much Less Stable Than Previously Thought, Study Finds
ScienceDaily (Aug. 4, 2011) — For the last 10,000 years, summer sea ice in the Arctic Ocean has been far from constant. For several thousand years, there was much less sea ice in The Arctic Ocean -- probably less than half of current amounts.
chicagogeorge 3 months ago
@chicagogeorge oh yeah? what new study?
uknowispeaksense 3 months ago
Great reporting. They won't believe anything is happening until their beach house is floating off it foundation.
baxtar1963 4 months ago