There really isn't any debate about what Mother Nature provides to protect mankind from destroying itself. Her REPRODUCTIVE program is called "LIFE IS SEXUALLY TRANSMITTED" and is skillfully revealed in the recommended four star rated book by the same title. This book contains the best information available anywhere to prove abstinence works. It jumps all religious and cultural backgrounds as it unravels the Maker's three step design for life revealed in the first two chapters of Genesis. The book should be required reading for all age groups since it resolves every relationship problem known to mankind. See for yourself. It's on the web.