Regarding #2. Finish your meals.
I never could understand, when I was a kid, of being told that if I didn’t “clean my plate,” i.e. eat all that was on my plate, “someone in China will die of starvation.”
That is the same theme we all were fed (pun intentional). Our ancestors dreamed of one day being able to purchase and store perishable food, especially those who resided in large cities. With no refrigeration, it was necessary to consume food or it would perish.
The pope's message on not wasting food is directed especially towards those societies where it is more plentiful, such as ours. A long while back, my husband and I were invited to Thanksgiving Day dinner at the home of his business associate. The house was filled with other associates and prime customers. The gentleman proudly showed off his double ovens, each one holding a 20+ lb turkey. At dinner, no one wanted to project an image of gluttony; hence they ate only small servings. After dinner, I jumped in and helped carry the leftover food into the kitchen. To my utter shock and dismay, I watched as the gentleman tossed two huge birds into the garbage. When he saw the expression on my face, he commented that he does not like leftovers. The image of those plump turkeys in a garbage pail, drove the message of waste, home. As you can see, I have never forgotten it.
Pope Francis makes an excellent point. While we cannot pack up the leftovers and ship them to China, we can certainly curtail our consumption to reduce waste. We are quite blessed not to be in a position of having to beg for food, as happened less than a century ago.