Plant a tree to offset it, shoot your local Taliban then stick a tree on his remains
It is okay making engines more efficent etc but end of day that just allows makes it last longer, in the end you are still going to eventually burn it all regardless of wind power etc it is a finite resource...........
Myself I think recycling plastics is a waste of time, I am all for burying it, I firmly believe that we are laying down a resource for the future, the technology is not there 100% to recycle plastics efficently, as oil reserves run down I can envisage these waste dumps being revisited in future years and the plastics being recovered and processed, most of the other waste having broken down.