I think Mother Nature is trying to tell us something, but I don't know if we're listening very well.  Our overall health and welfare greatly depends upon how we deal with our natural surroundings, as we already know all too well, I think.  We are, in essence, products of our planet; and if our planet is unhealthy, it stands to reason that we, too, will likely be unhealthy.    

We already know that many of our modern-day inventions have contributed to certain health issues (especially some of the chemicals we've created that confuse Mother Nature in big ways).  Yet we continue to use them and even introduce newer, more questionable things like genetically modified organisms (GMOs). Some GMOs are created by introducing genes from completely dissimilar organisms, like using genes from bacteria to modify plants.  

Somehow, I don't know if Mother Nature would do that, but we think we're wiser, I guess.  Such practices will, undoubtedly, result in changes to our health, in one way or another.  

We're seeing today what is happening to many people who are "celiac" or have other kinds of gluten intolerance issues.  Some sources say the recent uptick in this kind of health issue may be directly related to genetically modified wheat and other grains, which was experimented with and implemented mostly during the last half of the 20th century (post-1950s)
See also: en.wikipedia.org/.../...dified_food_controversies.

Will we learn?  Not likely, because there's too much at stake, I think.  Money, power, fame and fortune still command top-billing in many of these issues, and, until humanity learns how to "always do the right things", I suspect we'll see more of this same kind of "pseudo-ignorance" (because I believe we KNOW more than we're ADMITTING we know, y'know?).  

I'm just sayin'...