Critical Path is R. Buckminster Fuller's masterwork - the summing up of a lifetime's thought and concern - as urgent and relevant as it was upon its first publication over 20 years ago. Critical Path details how humanity found itself in its current situation - at the limits of the planet's natural resources and facing political, economic, environmental, and ethical crises. Fuller's analysis has been proven correct in many areas since then and his options for the survival of mankind are as compelling as ever. Critical Path is an essential text for any student of humanity.