For me, Death Valley is a somewhat familiar subject, but you have shown your own unique view of it. I like the extreme 'big sky' composition of the first shot, and the dust clouds are intriguing in the second. Were the dust clouds created by vehicles?
Frank, Mr. Savory's ideas are fascinating and invite more investigation. Death Valley(and the greater Mojave and Great Basin deserts) are known to have been grassland as recently as 10 or 12 thousand yeas ago. The story is that it was distinctly cooler and wetter due to an Ice Age, and that Death Valley was mostly filled by a large terminal lake called Ancient Lake Manly.
I don't know that there is any hope of re-greening an area that gets 5cm of rain per year.