More of us+more technology+new enabling technology=more CO2=disaster
I have been looking for a clear explanation for why, despite our growing understanding of the terrible risks involved, and our seemingly herculean efforts to green our energy consumption, our annual output of greenhouse gasses continues to rise. Our untrammelled population explosion is the root cause. Have a look at the World Population Clock: http://www.worldometers.info/world-population/ The second cause must be the increasing demand by the have-nots for the stuff the haves have. These travellers would, I am sure, prefer to travel in cars, even if it means waiting in a traffic jam.
The third cause must be the ongoing demand on the part of the haves for more stuff - more enabling technology. These add-ons mean new carbon emissions that probably pretty much cancel out the benefits of moving to renewable energy sources. Coming soon: the skies cluttered with robotic stuff. There is no excuse for this, but we will do it because we can, and maybe because we can't help ourselves.