The sad, sad story of declining human sperm levels.
Carlsen E, Giwercman A, Keiding N, Skakkebaek NE (1992) Evidence for decreasing quality of semen during past 50 years. BMJ 305(6854):609-13.
Jørgensen N, Joensen UN, Jensen TK, Jensen MB, Almstrup K, Olesen IA, Juul A, Andersson AM, Carlsen E, Petersen JH, Toppari J, Skakkebæk NE (2012) Human semen quality in the new millennium: a prospective cross-sectional population-based study of 4867 men. BMJ Open 2(4).
Swan SH, Elkin EP, Fenster L (2000) The question of declining sperm density revisited: an analysis of 101 studies published 1934-1996. Environ Health Perspect. 108(10):961-6.
Swan SH, Kruse RL, Liu F, Barr DB, Drobnis EZ, Redmon JB, Wang C, Brazil C, Overstreet JW; Study for Future Families Research Group (2003) Semen quality in relation to biomarkers of pesticide exposure. Environ Health Perspect 111(12):1478-84.
Swan SH (2006) Semen quality in fertile US men in relation to geographical area and pesticide exposure. Int J Androl 29(1):62-8.
New Ways of Thinking about Environmentalism: Elaborating on Gender Differences in Environmentalism:
https://spssi.onlinelibrary.wiley.com...
Women, more than men, say climate change will harm them personally
http://www.pewresearch.org/fact-tank/...
