Chris Schoneveld

Dutch Geologist Dr. Chris Schoneveld, a retired exploration geophysicist, has become an outspoken skeptic regarding the human influence on climate over the past four years.

List cites a comment to a media article and there's also a blog comment
He has a profile page here: http://www.atheistnexus.org/profile/ChrisSchoneveld
And a long message/letter:

Arguments Condensed

• Climate's changed before
• It's uncertain

Quotes:

• "There has never been a UN-organized conference on climate change where skeptics were invited for the sake of balance to present their case"
• "As long as the causes of the many climate changes throughout the Earth's history are not well understood, one cannot unequivocally separate natural causes from possibly manmade ones."
• "Who are the geologists that the IPCC is relying on? Is the IPCC at all concerned about the frequency and recurrence of ice ages? Who are the astronomers that advise the IPCC on other cause of possible climate change (sun spots or earth’s elliptical orbit, tilt and wobble of its axis) so as to ascertain that we are not just experiencing a normal trend related to interglacial warming or variation in solar radiation?"
  
  

Philip Stott

UK Professor Emeritus of Biogeography Philip Stott of the University of London
List cites this EPW blog post

He also has a blog

Arguments Condensed

• climate's changed before
• We know very little about climate
• It hasn't warmed since 1998 (although specifically he says "since at least 2001")

Quote

• "But, finally, we must return to basic science. Climate is the most complex, coupled, non-linear, semi-chaotic system known. The claim by UK MPs that they can manage climate predictably is the ultimate folie de grandeur. In such a system, both doing something (i.e., emitting gases) and not doing something (i.e., not emitting gases) at the margins are equally unpredictable as to outcomes." [ref]
• "Interestingly, the world average surface temperature has now exhibited no ‘global warming’ since at least 2001" [ref]

Notes:

• He argues mainly from politics, only occasionally wading into trying to justify his claims scientifically

Bruce Schwoegler

Atmospheric scientist Bruce Schwoegler, former U.S. Navy meteorologist and Boston broadcast meteorologist, rejected man-made climate fears.

List cites a letter to the list creators.

Arguments condensed

• "significant global warming is a concern"
• "there is a likely relationship between human induced impacts and climate change"
• It's all too complicated!

Quotes:

"But has anyone truly ascertained the scope, depth and outcome in our planetary system which is rife with natural checks and balances? Quantifying them and resultant interactions remains mostly a game of my theory versus yours"

Notes

I added this one for variation. It is a position of 'we don't know enough to conclude anything'. This position is in contradiction of the position of skeptics who claim to know that warming is not due to greenhouse effect enhancement (such as the EPW he is writing to for example...). He also mentions significant global warming as a concern, at odds with skeptics who have the position that warming is beneficial (although this depends on what "significant" is).

trivia: I hit my first duplicate just now. I almost started doing John L. Casey again, fortunately I got deja-vu just in time.