That's a little more than the UN medium estimate of world population, but the absolute number of people doesn't seem like a huge problem. That's only 30% more than today. We have plenty of coal to get at least the electricity, and although oil might be a problem, I imagine that we can substantially reduce our consumption of that if governments get serious about pricing in externalities.
The global warming aspect is very concerning though.
The global warming aspect is very concerning though.