- "I am totally convinced that there is something unusual happening with Global Climate. . . . What I am not convinced about is the science behind the 'causality'."
If you want more details and really want to get in to the nitty-gritty, Working Group 1 has now released most of its full report. The summaries come out first, then the report rolls out, with revisions as they go. The report's pretty large, but it includes citations to the scientific literature. That means if you want the details, you can go through the report, find the citation, then go to the nearest university library and track down the papers in their journals and continue your research from there. In some cases, you can find the papers through Google Scholar, but getting the full text tends to be hit-or-miss. On the other hand, Google Scholar does a pretty good job of showing you which other papers cite the paper you're searching for, so you can see how others have commented on the paper.
- What is that I can do personally that will at least stop the situation from becoming worse if not reverse it?
The second half of this question comes in two parts. First, the IPCC report shows most of the greenhouse gas emissions come from the energy sector, which suggests energy conservation is something someone can do personally. Transportation is another area to consider (in other words, think twice before buying the gas guzzler.) Second, the U.S. is entering a presidential election cycle, which means We the People might have a shot at steering the debate or changing policy.
- What do scientists think the impact of global warming will be? What does it mean to me?