As far as I have been able to find out - yes, the climate is changing, and it has been getting warmer for several decades, but it is probably mostly what would have happened without human influence too. But there is also probably some human influence. Although it most probably is less from CO2 than some other things, which would be for example land use, large scale farming and such. However, it's not exactly the huge problem it is made out to be. And trying to stop it in the ways we are now doing is not going to work. Would make more sense to figure out ways to adjust to it, or to any other big potential changes. The next glaciation period is still going to happen sooner or later, maybe now just later, and there will be catastrophes we will not be able to prevent by any means we have now, like huge volcano eruptions, so - find ways to prepare to anything rather than try to keep things as they are now.

The only thing certain on this planet is that things are going to change, drastically, sooner or later, will have and will. And you don't need to look at things only in the geological time scales. It has happened several times during the era humans have existed here, and most times due to completely natural causes.

We need to create societies that are able to adjust to sudden changes in our environment.