My parents would have been embarrassed to go to the bank and ask for a loan to buy more gadgets. The Depression taught them, and they taught me, don't go into debt. It's worth revisiting those values now.
Understanding the "life-cycle" of any consumable good offers a fairly accurate sense of how "green" it really is -- basically, where things come from and what happens to them when we are done with them.
We ought to consider how NASA's discovery of water on the moon could alter the fabric of life on earth. The implications of this find -- including the possible near-term development of a viable lunar colony -- are staggering.