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.
Otherwise it would be 85,000 ways to increase your sperm count. So basically, just watch out for chemicals in general. Pesticides and other harmful chemicals all play a role in sperm count reduction. These chemicals wreak havoc on our endocrine systems, and put our swimmers at risk.