I read George Monbiot's Heat last week (which makes this post very outdated indeed...). Its very good, everybody should read it. The thing is that it deals with how it is possible to, with a decent amount of probability, prevent that global warming goes into the beyond tolerable. It will be hard but doable.
The effect this book had on me is that I now feel ready to act. Monbiot basically shows what needs to be done, now we have to get about doing it. It won't be enough just to change one's own life, we have to start putting pressure on those in power.
Here is a good interview that will give you a good idea about what needs to be done (and why for those of you who do not know that). My favorite line is the one comparing what is required from us to face this crisis compared to WWII.
You say that flying less is a sacrifice too great for the people of this country to bear. But the last time the world was faced with an existential crisis - the rise of the Axis powers - millions of people were asked to sacrifice their lives to prevent it. Now, we are being asked to sacrifice our holidays in Florida and Thailand.
Part 1, Part 2, Part 3, Part 4. (YouTube)
Now, there are some things about which I do not agree with Mr. Monbiot. They are not central to the argument. He essentially says that the controversy over what the scientific position on climate change is cause by people not understanding what science is. This I think is only part of the problem. Climate change reveals problems in the very scientific method itself. It clearly seems to be beyond what is possible for todays scientists to reach a scientific conclusion about the entire phenomenon. All the experts deal with small aspects in which the method works, but it seems that when it comes to compiling all this data it is no longer possible to keep the same methodical stringency. Hence the controversy over IPCC:s reports.
While there certainly does not exist any better tries as assessing the entire phenomenon then IPCC, it is still open to criticism, which sadly is used to prevent the needed the decisions to being taken.