Once upon a time the Sahara desert was a verdant green paradise

This is a matter of the utmost concern to me:

http://timesofindia.indiatimes.com/world/us/Amid-drought-California-declares-war-on-lush-lawns/articleshow/39529764.cms

For me the drought in this part of the SE of the United States is a matter of deep worry and concern.

Las Vegas is very fortunate for its proximity to the Hoover Dam.