The decade  of the 70s will be remembered as the time when the world came to the realization that an era of cheap and abundant energy had ended.International economic and political relationships were transformed,and national patterns of growth and development were,in many cases,radically altered.

The decade  of the 70s will be remembered as the time when the world came to the realization that an era of cheap and abundant energy had ended.International economic and political relationships were transformed,and national patterns of growth and development were,in many cases,radically altered.