Anyone with a working knowledge of sustainability issues in the world today understands there are major problems with the food supply systems we have in place. They are structurally unequal, dependent on damaging tech, work against rather than with nature, and are looking like they could cause reductions in yields over the long term rather than the increase they were implemented for.
One of the stand out arguments is that meat production is getting harder to justify on the two main grounds of it being hugely damaging to the environment and hugely inefficient in terms of the food calories per unit of resources put in. But we also know that vegan diets are problematic for overall human health.
Insects are therefore a really good option for how we could maintain animal proteins in our food but produce them in a very much sustainable way. See a great overview in this article from The Guardian.
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