Not a denier in most senses of the word, but I don't prescribe to the doom and gloom media portrayals or the fixes that involve countries paying for their carbon output to other countries, or any other such, socialistic in nature, fixes. I am a big fan of basic research and "sciencing" our way out of this problem.
A couple times a month there are technologies on the front page of Slashdot that make me think if we did this at a large enough scale we could solve this issue. I realize there are often issues of scale that prevent this, but combinations of multiple technologies will hopefully get us there in the near future.
There was one such tech last month, I believe, that was a plastic and glass film that could be produced for 50 cents a square meter that would push a significant amount of energy off planet into space. I did some rough math on it and figured out that it would cost about 6 trillion dollars of the stuff to radiate as much energy back into space as global warming is estimated to be trapping. This is not counting the fact that you could put it on places that would reduce energy costs for air conditioning and refrigeration. 6 trillion is a lot, but it would be less than a percent of world GDP over the course of 10 years. As I recall, this was a material that actually existed and was not just some theory on the drawing board.
This combined with increased adoption of Solar, the potential for getting Fusion working in the next 20 years (I know always in the next 20 years, but some real improvements are happening), electric vehicles, and increased power storage capabilities could bring the world to carbon neutrality before the doom and gloom predictions come true. I think getting carbon neutral power generation tech into maturity and adoptable by third world countries trying to be first world countries is the best way forward.
We have learned over the past 30 or more years, it is very difficult to convince people that limiting their lifestyle or country to help fix a problem that will probably not have a noticeable effect on them or their family in the next 30 years. I suggest we immediately abandon that method as it just hurts the cause. Focus on the positive cool tech and money saving efficient ways of solving this problem and the denialists will slowly fade into the background while we usher in a world with inexpensive electricity and extreme efficiency.