kio

but when it reach to that point, I believe the water level must rise up alot.
$ c; s2 f% ^" {) s公仔箱論壇Eventually, there will not have enough space for people to stand. tvb now,tvbnow,bttvb3 M+ C8 E) A2 t
Oxgyen supply will become a critical problem of building a 2000 floor building.
! M! B; W7 _- x- {" \8 l) {% PWhen the Earth gets more crowded, the oxygen will not be enough to supply to all the man-kind.8 f: C4 y' ]0 s
AT a result, I think human will never going to reach that point.