Since you are so fond of the ice core samples and the 800,000 year fluctuations you might find this little paragraph interesting. (Hint: you had to go beyond the pictures and read) Over the last 800,000 years atmospheric CO2 levels as indicated by the ice-core data have fluctuated between 170 and 300 parts per million by volume (ppmv), corresponding with conditions of glacial and interglacial periods. The Vostok core indicates very similar trends. Prior to about 450,000 years before present time (BP) atmospheric CO2 levels were always at or below 260 ppmv and reached lowest values, approaching 170 ppmv, between 660,000 and 670,000 years ago. The highest pre-industrial value recorded in 800,000 years of ice-core record was 298.6 ppmv, in the Vostok core, around 330,000 years ago. Atmospheric CO2 levels have increased markedly in industrial times; measurements in year 2010 at Cape Grim Tasmania and the South Pole both indicated values of 386 ppmv, and are currently increasing at about 2 ppmv/year. That's a huge increase over the highest pre-industrial level. And it's increasing at 2% a year. No one is disputing periodic changes in earth's climate. No one. The issue is the rate of change and the magnitude of recent changes. You keep responding to question "x," when no one is asking that question. It must be frustrating I suspect you don't care, and you will in all likelihood continue your childish insults. Do what you need to do. I'm out of this "conversation." Pointless!