It's all well and good to say that if I personally generate less CO2 then I personally will have less impact on temperature rise, but collectively, the impact depends on lots of other people's decisions, on population growth, on animal populations particularly cows. And of course if we are already on a trajectory that will increasingly release methane from clathrates, then what if that dwarfs changes in human activity?
There does seem to be some evidence that things like carbon taxes are mainly a bureaucratic boondoggle to enrich some people and to hide CO2 production by shifting it to some place that people don't look at too closely. We must never forget that bureaucracy drives corruption no matter what the underlying political system is. So if people are truly serious about collective human action to slow CO2 production or reverse it, we must be even more serious about cleaning out corruption at all levels in all countries.
We have a fairly good understanding of the onset of the current inter-glacial. We don't, because ice cores and other information gets progressively harder to read, the further you go back, know all that much about the onset of a glacial period, but it does appear to be fairly quick. (Not Day after Tomorrow quick, but definitely within a lifetime quick.)
We're coming to what would normally be the end of the current inter-glacial, we have record C02 levels, and the gulf stream has been slowing down for the last 20 years. Nobody really knows whats going to happen next - but the UK Met office was apparently sufficiently alarmed to issue a blog post saying absolutely nothing if you read it carefully.
Interesting times.