If these numbers make you dizzy, take a reservoir walk before proceeding. The following will almost certainly happen, but sometimes a slam dunk catches the rim and bounces out quite spectacularly. We just passed the six billion mark in October and probably have several more billion to go. Virtually none of this growth will occur in the mid-Hudson Valley. No one knows.
Most estimates place the Earth's long-term capacity at four to sixteen billion.
Some place it as low as one billion. The Earth's temperature will rise. The Earth's sea level will rise. Weather will become more violent. If you enjoyed Hurricane Floyd, you're going to love the twenty-first century.