I have got into a good habit ever since my childhood until now: not leave a single grain of rice in my bowl whenever I finish eating a meal.  But I guess not everyone would have the same habit like I do. 

Recently, President Xi called for a nationwide movement of stopping food waste.  The attached reportage tells you some countries deliberately insinuate that China is now sinking in the mire of food shortage, and also tells you at the same time how some countries temselves have also been trying hard to curb the profligate food waste.   

https://www.toutiao.com/a6874064745394078222/