I got two things to say, bees, meat.

The population of honey bees in the US has fallen about in half the last 3 years.  Science has at last identified the killer, pesticides, called neonicotinoids.  A tobacco product used to coat seeds, making them poison while in storage.  But once planted it turns out neonicotinoids travel into the plant and end up concentrated in the flower, killing the bees by disorientation and fatigue, they cannot find their way back home.  

Without bees, food crop production will fall an estimated 50%, in some even higher.  
The last two weeks have seen 5 or more studies about red meat (beef, pork, lamb) impacting heart disease and a whole list of cancers.  All found the same thing, eat more than just a little meat, and cause your own cancer.  One large one followed 25,000 for 10 years.  Red meat eaters, (volume dependant) die of heart disease and cancers 30% more often than those who avoid red meats.  One of the studies finally identified the cancer causing element in meat, carnitine.  Carnitine causes a whole list of cancers, proven.  This was a biggie, up till now it was not known what it was that starts and feeds cancer.

Have a nice day.  In Europe they banned the bee killer chemical for 2 years for further study, here the chemical will continue until a study expected in 5 years go to review expected to take a year, all the money is on the chemical side, almost none on the bees, till the store shelves run thin.  Meat industry sounds like tobacco and oil today, the science is unsettled.  Well, I am settled, settled into eating chicken and fish once a week, and for the last 2 years red meat maybe 10, maybe 15 times total.