Chuck Areford —  More recently, climate change-denying scientists have been found to have deep ties to fossil fuel corporations.
ME — Those are simply lies. Here is the real money situation: 
http://www.debunkingclimate.com/bigmoneyscaring.html
The climate scare industry is a TRILLION DOLLARE INDUSTRY: http://www.debunkingclimate.com/trillion_dollar.html

Chuck Areford —  Historical records show no known natural processes to account for the rapidity and degree of warming. 
ME — Again this is a lie. The earth warmed faster and more before man emitted much CO2. Here is what one CRU/IPCC lead author wrote about the last 4 warm periods:
So, in answer to the question, the warming rates for all 4 periods are similar and not statistically significantly different from each other.  http://www.debunkingclimate.com/jonesinterview.html

The Minoan, Roman and Medieval warm periods were all warmer than now.