So, I referenced the Climate Change: Evidence and Causes report and noted it was pretty long. Here’s a short summary.
The report is structured as Question and Answer. Most of the questions respond to common misperceptions about causes (the sun did it, climate always changes, why are winters still cold, etc.). Useful if you’re looking to respond to your crazy uncle over Thanksgiving dinner.
The middle portion of the report discusses more of the potential impacts: Arctic and Antarctic sea ice; strength and frequency of floods, hurricanes, drought, etc.; rate of sea level rise; and, ocean acidification. Finally, the report covers some loose ends like scientific confidence and uncertainty, disaster scenarios, and level of concern. There also is an appendix on the scientific basics of climate change.
Like I said before, it is fairly easy to read and combines a broad spectrum of the discussion under one cover. It is for someone who is generally familiar with the climate change debate, but wants a little more detail. Not heavy on the science stuff, but I may be a poor judge of that.