By Yvonne Lee and Lee Haye-ah, Yonhap New Agency, South Korea- On one side of the most heavily militarized border in the world is an abundance of green. Rows and rows of rice stalks stand drenched in water, surrounded by voluptuous emerald trees. Turn 180 degrees to the North, and the landscape is barren -- a vast, desiccated plain dotted with empty blue and white buildings, its trees cut down long ago for heating fuel.