Take a look at a physical map of the world. Thirty degrees on either side of the equator, you will see, distributed with suspicious regularity, a brown band of drylands circling the planet, a sere belt warding off greener climes: the deserts of the world.
"The earth seemed to have faded, the colors no longer vibrant. Everything appeared dull and flat, with a gray, almost monochromatic tone. Dead." Find #FallenNovel here: http://www.amazon.com/gp/aw/d/1633931897/ref