I have mentioned Dr. Roy Spencer on this blog many times, and I highly recommend his recent book, titled "Climate Confusion: How Global Warming Hysteria Leads To Bad Science, Pandering Politicians And Misguided Policies That Hurt The Poor". Please do a search of the blog and find much more by Dr. Spencer.
The following is a video of his presentation in front of Sen. Boxer's Congressional Committee. Note how she does not appear to even be listening and how rude she is toward Dr. Spencer in her follow-up questioning. Rather that question his science, (which she probably knows next to nothing about, she tries to discredit his character. This is all-too characteristic of people trying to defend what I call the MYTH of man-caused global warming. Dr. Spencer whole-heartedly agrees with this.
Here is the written text of Dr. Roy Spencer's above-mentioned video testimony.