Then there are concerns about our future: should we stockpile food, should we retain glass jars and tin coffee cans for future use?
Yes that is a big concern, what to do in the event of food shortages. One thing that has not happened to me but I wanted to bring it up, since I think "lightworkers", might run across this at some time, is that we might be able to instantly manifest food and water with our thoughts.
I only bring this up to alert people that it might happen to them, and if they do acquire instant manifestation abilites, trying to manifest, let's say an apple would be a good thing to do. I remember a friend once telling me, that if he had instant manifestation skills, he wouldn't know what to manifest aside from making money appear in his hand. And that's when I started to think about instant manifestation in real ways, aside from just fantasy, how would that work in the real world. Anway... I think even our guides would intuitively nudge us to manifest food and water, since that would be a something everybody could use, rather than say a huge pile of money, which could cause more problems than it could solve.
This is just my opinion, the thing to do is to ask your own guides/angels how this would work and what you should do, since we'll all have to decide for ourselves.