The human-environment interaction goes back to the remotest possible times in the history of humanity. Sometimes, it is seen as a manifestation of a struggle between the two. There have also been times when this relationship took the form of respectable coexistence. While the history of humanity of the last several millennia is noted for its constant (if not consistent) progress in different walks of life, the mysteries of nature have often proved to be quite tempting to be solved by human thinking and actions.