Water highways in the sky

arth’s surface is 71% water. Since it is such a watery planet, you wouldn’t expect some countries to struggle with water scarcity. Yet, only 2.5% of Earth’s water is fresh water without any salt. Most of this is locked up in ice caps and glaciers at the poles. This leaves the billions of humans and other land creatures with a teeny 1% of all Earth’s water to survive on. Nature is kind enough to recycle this water continually, purifying it in an endless cycle through the ages. All that’s left