http://www.physorg.com/news109270146.html
There"s no point in cross-referencing terms like "environment" to some generic search page -- or to anything at all. Readers of this site can be assumed to be intelligent enough to understand concepts routinely learned by age 10. In another related article "preganant women" is hyperlinked. Why do this? There"s nothing in the hyperlink that"s related to the site, or especially insightful. Note, for example, that in *this* article MEES, a much more obscure term, isn"t explained at in any way.
If I wanted to know about environment or MEES, I wouldn"t use this site to investigate it. The hyperlinks are intrusive and misdirect readers. Don"t improve them. Lose them.