There are two major impacts on the planet of not chewing your food:  1) You eat more, 2) Your health is worse so you take more drugs.

1) "U.S. Farmers produce 3,800 calories' worth of food a day for every man, woman and child in America.  That's nearly double what the average person needs.  The almost inevitable consequence of this surfeit is a system that encourages Full-tilt consumption: Producers and food manufacturers want us to eat more of their products, and they are competing with one another to exploit our weaknesses." 

This quote is from Eat, Drink and Be Healthy by Walter C. Willett, M.D. and the Harvard School of Public Health.  To see more about this book, click here.

What if we weren’t eating those extra calories, in spite of all the advertising and marketing trying to convince us to eat them?  Some people would try to tell you that farmers would be put out of work.  But if we ate local, organic food, more people would actually be employed in farming.  We might be able to use those calories to feed the poor and hungry.  In the United States.  Maybe even in other countries.

2) When you overeat, especially when you overeat processed food, it makes you sick.  You may need drugs like antacids, proton pump inhibitors, cholesterol lowering drugs, blood pressure lowering drugs, etc.  Those drugs are not entirely clean in their production.  And if you get a new prescription before you use all of the old one, or if you don’t use your medications up before they expire, they have to be disposed of.

Please do not flush unused drugs down your toilet.  Those drugs will then pollute our water, our streams and rivers, and eventually our oceans.  There really is no good way to dispose of unused drugs.  The best may be to seal them (in their original container) inside a plastic bag and throw them away.  If you are unsure how to dispose of unused drugs, ask your pharmacist.