availability freshwater renewable km3
water cycle fresh supply world use graph bar data trends 1900 textbook 2000 environmental environment graphs global agriculture projected scarcity
infographics theglobaleducationproject
water global world consumption graph desalination 1900 2025 future prices important scarcity highest use increase population years countries billion rates
water resources distribution population fresh ppt powerpoint presentation
consumption water global trends demand commodity world patterns years food energy region will ahead availability countries invest supply china africa
1901 billion experiencing stress
fao agriculture aquastat things projected demands