mamooth
Diamond Member
Because 1979 is when the satellite record starts. I imagine they moved it to 1980 there just to be neat.Why does your chart start in 1980?
If you use different data types to go back furuther, you find that 1979 is not any sort of peak of a cycle. Ice decline was already on the way before that. The peak is more like 1960, and it's a pretty minor one compared to previous years.

Nueva serie de extensión del hielo marino ártico en septiembre entre 1935 y 2014
(english version here) Acabamos de publicar en la Revista de ClimatologĂa (ISSN 1578-8768) el artĂculo «Nueva serie de extensiĂłn del hielo marino ártico en septiembre entre 1935 y 2014»: – D…
So, if you're asking, no, I'm not cherrypicking.