emile elias

USDA’s ARS scientists chart course of water management

As much water as there is in the world, only about one-half of 1% of it is drinkable. To illustrate, if the world’s water supply were condensed to 26 gallons (about 100 liters), fresh water would amount to only one-half of a teaspoon. What’s worse, that half-teaspoon appears t... Read More