It has been suggested that even during wet periods the canyon was able to sustain only 2,000 people.

Now they just had to sustain two people for 104 days.

It is specified to sustain 3339 people for 14 days.

Ecology wise.a desert region can only sustain so many people .

The Horn of Africa cannot sustain so many people.

"A city of 7.5 million cannot sustain a million people on welfare," he says.

Overall, arid and semi-arid lands make up a quarter of the earth's land mass and sustain some 900 million people.

These rivers join the Indus, which carries water that sustains more than 200 million people.

But my cook got carried away with the notion of what would be necessary to sustain seven people on the river in midwinter.

In the U.S. today, a single farmer can sustain himself or herself and approximately 45 other people.