We got climate change wrong says IPCC - global warming estimates revised down; Global temperatures less sensitive to atmospheric carbon dioxide than previously thought
Again, is this instinct, or do you have any sort of degree or doctorate in any scientific background? Do you have any references to back up your claims?
It's basic logic. If they can't even date the ice cores to within 100 years how can they use ice cores to tell what the climate was doing with 100 year accuracy 800,000 years ago?
Upper layers of in an ice core can correspond to a single year or season, but as you move deeper the layers thin and become indistinguishable.
If you believe I'm wrong, then show me a chart (or data series) of global temperatures over 800,000 years with data points every 100 years at a minimum.
It's basic logic. If they can't even date the ice cores to within 100 years how can they use ice cores to tell what the climate was doing with 100 year accuracy 800,000 years ago?
Upper layers of in an ice core can correspond to a single year or season, but as you move deeper the layers thin and become indistinguishable.
If you believe I'm wrong, then show me a chart (or data series) of global temperatures over 800,000 years with data points every 100 years at a minimum.
Link please?
"If man is to survive, he will have learned to take a delight in the essential differences between men and between cultures. He will learn that differences in ideas and attitudes are a delight, part of life's exciting variety, not something to fear." - Gene Roddenberry
"Balloon animals are a great way to teach children that the things they love dearly, may spontaneously explode" -- Lee Camp
Are you a climatologist? Do you work with ice cores all the time? Or is this just spun out of your head?
"If man is to survive, he will have learned to take a delight in the essential differences between men and between cultures. He will learn that differences in ideas and attitudes are a delight, part of life's exciting variety, not something to fear." - Gene Roddenberry
"Balloon animals are a great way to teach children that the things they love dearly, may spontaneously explode" -- Lee Camp
Again, references? Links? Reports from respectable scientific bodies?
"If man is to survive, he will have learned to take a delight in the essential differences between men and between cultures. He will learn that differences in ideas and attitudes are a delight, part of life's exciting variety, not something to fear." - Gene Roddenberry
"Balloon animals are a great way to teach children that the things they love dearly, may spontaneously explode" -- Lee Camp
During the 99/00 Antarctic field season a group of US scientists retrieved a 600m horizontal ice core from the Mt. Moulton blue ice field. Previous studies of the tephra layers in this area indicate a strong likelihood that we can construct a 480,000 year climate record from the area. 40Ar/39Ar dating of six tephra layers (in stratigraphic order) from the area range from 15,000 ± 2,000 years
Dating is a difficult task. Five different dating methods have been used for Vostok cores, with differences such as 300 years per meter at 100 m depth, 600yr/m at 200 m, 7000yr/m at 400 m, 5000yr/m at 800 m, 6000yr/m at 1600 m, and 5000yr/m at 1934 m.
Different dating methods makes comparison and interpretation difficult. Matching peaks by visual examination of Moulton and Vostok ice cores suggests a time difference of about 10,000 years but proper interpretation requires knowing the reasons for the differences.
So maybe down to 2000-year accuracy if they're lucky.
Good luck translating that block of ice into any sort of meaningful data on what the climate was doing over the span of a few decades, half a million years ago.
At that depth, you've got a metre of ice all squashed together and melted into itself, representing thousands of years.
Are you a climatologist? Do you work with ice cores all the time? Or is this just spun out of your head?
you don't need to be a climatologist to see they fucked up. you just need enough brains to follow a line and see the other lines go in a different direction.
I am the love child of Tony Abbott and Pauline Hanson
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