Sustainable - Sustainability: Energy, Environment, Economy

Sustainable Living?

I ask:
Can anyone offer up a short list of what humans need to sustain life?
x amount of potable water
x amount of calories / food
shelter from the elements
For a specified amount a time ?
What is the gender age and weight of the person?
Are they carieng for themselves or are there others involved?
What is the region they [...]

Read More About - Sustainable Living? »