It's Earth Overshoot Day!

[GliderGuider]

4. Yes. I also wonder if Mom Nature is already lending us a hand.

http://www.latimes.com/news/nationworld/world/la-fg-israel-sperm-20120816,0,601440.story

Israel sperm banks find quality is plummeting

Dr. Jacob Ronen is in the sperm business. Among other things, as head of Cryobank Israel, the country's largest private sperm bank, he guarantees that his stable of superior donors includes only tall, twentysomething ex-soldiers whose sperm has passed rigorous genetic testing.

But finding such super sperm isn't as easy as it used to be. Only 1 in 100 donors makes the cut. A decade ago, it was 1 in 10.

Simply put, the quality of Israeli sperm is falling at an alarming rate, and no one's sure exactly why.

So the drop in the quality of sperm is raising some red flags, even though the cause remains a mystery. Speculative theories range from the mundane (carrying cellphones in front pockets) to the far-fetched (depleted uranium from exploded munitions). Some Israeli scientists are looking seriously at naturally occurring hormones, particularly estrogen, in Israel's water and milk and suggest that it's a mark of the country's aggressive dairy farming methods.