The main points that most would agree on as "the consensus" are:
1. The earth is getting warmer (0.6 +/- 0.2 oC in the past century; 0.1 0.17 oC/decade over the last 30 years (see update)) [ch 2]
2. People are causing this [ch 12] (see update)
3. If GHG emissions continue, the warming will continue and indeed accelerate [ch 9]
4. (This will be a problem and we ought to do something about it)
I've put those four points in rough order of certainty. The last one is in brackets because whilst many would agree, many others (who agree with 1-3) would not, at least without qualification. It's probably not a part of the core consensus in the way 1-3 are.
Yep, all of that remains pretty well true, and remains the core....In the years since I wrote that nothing has come along to overturn any of that, and much has come in to buttress it....However, I still think there is room for honest skepticism and disagreement about point 4.... The real argument should be about point 4: that it will be a problem and we should do something about it....I don't know the answer to point 4, and I know that I don't know :-).