4 billion people face water shortages

Two-thirds of the global population are facing water scarcity.

4 billion people face water shortages

Via weforum.org
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Alex E

Ecoclimax is defined by Odum (1969) as the culmination state after a succession in a stabilized ecosystem in which maximum biomass (or high information content) and symbiotic function among organisms is kept per unit of available energy flow.