3 ms·Plus, most places that actually need water are well in inland. Pumping water uphill is expensive.by TylerE 4y agoPlus, most places that actually need water are well in inland. Pumping water uphill is expensive.ThinkBeat 4y agoWe are talking about an awfully high number of people right now. I was thinking on a global scale.TylerE 4y agoIt's still true. Seawater is, rather by definition, at sea level. 99.999% of the Earth's surface is higher than that.