I am not sure what is the significance of the 420k year data you posted on from the ice cores studies to what I posted in this thread. The study from Meehl et al. makes no connection or inference on the CO2, dust level and global warming. It showed that in the past 4 out of 5 decades, there is a significant recorded higher highs than lower lows of continental US tempearatures, suggestive of warming.Quote from drjekyllus:
Based on this analysis I suspect you are one of many losers on ET. Why not use 420,000 years of data? Maybe the picture will become clearer.
From this graph it would appear that temp data is rather stationary. This one calls for a RTM strategy.
The long term data is useful for a baseline study of global temperature to other climate factors, but if you want to study human effects on climate changes, the significant data are in the last few hundred years, not hundreds of thousands of years ago when the human population was in the tens of thousands.