kio

but when it reach to that point, I believe the water level must rise up alot.
9 `. ?% r) J; x% t5 h8 W5.39.217.77:8898Eventually, there will not have enough space for people to stand. 公仔箱論壇+ f' U0 `: \! z
Oxgyen supply will become a critical problem of building a 2000 floor building.
: E1 [* Q+ u9 g7 kWhen the Earth gets more crowded, the oxygen will not be enough to supply to all the man-kind.公仔箱論壇8 s4 r! ]: M+ d
AT a result, I think human will never going to reach that point.