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Insects, the new food?
(2017)
In many parts of the world it is common to eat insects while in the western world it is regarded as a bizarre habit, even evoking disgust. Is this justified? What if insects were nutritionally similar to our common meat products and have proven to be delicious in blind tests? Insects have an environmental impact which is much less than our common production animals, so why not eat it? If these questions can be answered affirmatively, then the question is: Can we persuade the western consumers to take this psychological barrier? There has been a tremendous interest during the last five years to promote insects as food. There are now close to 200 start-up companies listed. Also, in the scientific world the interest is growing exponentially, testified by the number of articles on edible insects that have appeared during the last 15 years (83 from 2011 to 2015 against 9 from 2001 to 20051). These articles deal with harvesting from nature, environmental benefits, nutritional value, food safety, processing, and consumer attitudes. I will give a short overview of the developments in these different areas.
Our daily food consumption is slowly but surely turning into the largest environmental threat. The agricultural sector consumes 70% of the water used by humankind. The production of meat consumes enormous amounts of water compared to plants. Innovations in the area of food production are lately summarized as AgTech, agricultural technology. This encompasses all sorts of areas, ranging from drone-controlled tractors to printed hamburgers. Specifically the challenge of making use of the limited areas available in cities and maximizing crop yields has seen a recent boom in novel approaches – and quite a bit of investor finance.
Human-induced environmental change represents one of the major challenges of current and future generations. To evaluate the anthropogenic impacts on the biosphere, the concept of Planetary Boundaries was developed, indicating that in case of four out of nine environmental indicators a transgression of corresponding boundaries has already taken place: Biodiversity loss, climate change, land-system change, and biogeochemical flows. Further, paleoclimate research has shown that the earth´s environment has been relatively stable for the last 12,000 years. Researchers assume that this, in geological terms, very short period – called Holocene – is now already again replaced by a new geological era: the Anthropocene, due to the tremendous impacts humans had on earth.