OK, let me try and clarify some points.
First off, I don't think the science is settled. Although I am firmly leaning towards "It's happening, and it's probably due to greenhouse gases produced by humans", I am trying to keep an open mind here and I try to read all evidence for and against without prejudice. I think we should be researching this as much as we can, for many years into the future.
I use the word "denier" to describe people that think they know 100% that we're being told a lie. Unless you have a PhD in climatology/geography or similar, or can fully understand every detail/computer model in every climate/geography scientific journal, then sorry, but you're not really qualified to say "Open your eyes, it's obvious that it's due to [insert other cause here]". .....
First, it's extremely easy, as you've seen in this thread, to point out lies we are being told. However, that really does not prove or disprove any fundamental questions.
Second, don't place too much credence in the "PdD in climatology". That actually makes me laugh, because the guys that go into that field really are not the sharpest tools in the shed, and second, because that doesn't make them an expert in glaciers, sediment, atmospheric effects of gases...in any of a large number of scientific fields, unless by chance it is the specific field they studied.
"PdD in physics" is much more handy regarding the fundamental assumptions and questions of "global warming".
The computer models are not really helpful. This is a very, very politicized field.
I suggest reading
http://wattsupwiththat.com/2014/08/02/global-temperature-update-still-no-global-warming-for-17-years-10-months/for fun and entertainment. Example as to why, let me quote the first two reader responses to the article linked to above.
R. Shearer says:
August 2, 2014 at 8:03 am
Someone asked here before, “What is the chance that a natural cooling is exactly cancelling out AGW?”
Leonard Weinstein says:
August 2, 2014 at 8:21 am
R. Shearer,
It does not matter if natural cooling exactly cancelled out AGW, or if there is no significant AGW. The supporters of CAGW insisted that CO2 is the main force that drives average temperature, and insisted it would totally dominate any natural variation (except short term volcanic effects). Skeptics have contended that either the forcing was much smaller than promoted, so that it was not a real problem, or that natural variation dominated the human CO2 contribution, so that it was not the main controlling method. These skeptics positions have been supported with actual data evidence, although which of the two factors is more important is not fully resolved.
The issue was the possible onset of a major rising temperature problem due to CO2 increase, and it has not been demonstrated. In fact, there is significant reason to think an average cooling trend for at least several decades is more likely than a warming trend, following the plateau.