Materials, products and services - the Green Guide Online provides details of the life cycle environmental impacts of construction materials and components, and the Green Book is a free online database of products and services.
Spermicides are used globally for birth control, with or without condoms. As the only means of birth control, spermicides are rarely effective. However, in conjunction with condoms, spermicides are somewhat effective in birth control.
1 Condoms in spermicide work as contraception by killing the sperm before it can travel to the uterus. It arrests the spermâs motion, damages it and makes it inactive.  Condoms with spermicides may work as birth control but they cannot fully eliminate the transfer of sexually transmitted diseases.