Birdy you off posting drivel again
They key point trying to be made here ids why did the make 1979 as the start year for measurement of Arctic Ice
The answer is not as this man is saying thjey are trying to fudge the figures
The answer is it is the first year indesputable reliable figures became available because that is the first year of consistent reliable sattelite Data
If you want a graph that includes pre 1979 from reliable sources have a look this
If you want the background and methodology it is here https://nsidc.org/cryosphere/icelights/2011/01/arctic-sea-ice-satellites
This was compiled by National Snow and Ice data centre generally accepted as one of ifnot the global authority on these matters
