Among recent ideas that have come about is a scheme to reduce our meat intake (because eating hamburgers is bad for the planet, supposedly) by switching over to an insect-based diet. A 2018 study by German and Swiss scientists made it sound really appetizing.

“The rising interest in entomophagy (i.e., insect consumption by humans) results not only from the increased attention paid to anthropogenic climate change but also from recent advances in agricultural technology and food safety, which make insects a viable option for industrial and private production.” ...