In Egypt, a dry desert land in the heart of Africa, the civilizations are clustered along the Nile, the longest river in the world. The desertification on display there offers clues to universal threats and our climate future: freshwater disruption, loss of land and wetland, urbanization, saltwater intrusion, and rising temperatures. — What is the antithesis of the ocean? The desert it would seem. I recently traveled to Egypt, purported to be the driest, least rainy, country in the world. Rain averages .1 inches a year; snow rarely falls in the mountains of the Sinai. The country is a sliver of water…