After 15,000 years, it's waking up

Yes, show a still of coastal erosion and blame it on anthropgenic climate change, very poor.    There is multiple geological, paleological, anthroplogical and cryological evidence that the Arctic was on average 5-6-C warmer 8000 years ago, than today.  Also in the previous interglacial.    So was that due to human CO2 emissions?  Why was there no runaway warming from the positive feedback from methane and CO2 then?     Please stick to physics and leave the junk science and propaganda to the environmental activists and climageddonists.