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but when it reach to that point, I believe the water level must rise up alot.' x& r3 o4 C% @4 F
Eventually, there will not have enough space for people to stand.
' C& L4 a' u8 t7 x  [" k- p! M/ WOxgyen supply will become a critical problem of building a 2000 floor building.
+ u9 {+ Y5 b9 `" O2 V, p6 o9 g公仔箱論壇When the Earth gets more crowded, the oxygen will not be enough to supply to all the man-kind.- d3 N( {  P6 s) t8 v+ G( q! _
AT a result, I think human will never going to reach that point.