What you fail to mention is regardless of your graph.
Man is and has always been to blame. Not just for the warming but for the cooling as well. That is why they renamed it to Climate Change instead of Global Warming.
This graph shows that before mankind there was NO climate change whatsoever.
So quit pretending that man isn't responsible and get ready to pay your fair share of the Carbon Tax.
This is the source link for the graph. http://www.scotese.com/climate.htm