Did you know that around 2 billion people around the world choose to eat insects as part of their regular diet? The practice of eating insects is called entomophagy (say en-toe-moe-fay-gee) and is most common in tropical areas where larger species can be found all year round. Around 1900 different species are regularly eaten, including beetles, caterpillars, bees, ants, grasshoppers and crickets. These insects are an important part of people’s diets as they are rich in protein and vital minerals and vitamins.
Across the world, 90% of people are meat-eaters. Of course, most of the meat eaten comes not from insects but from larger animals such as cows and sheep. With the world’s population set to reach 9 billion by 2050, the huge demand for animal protein is growing all the time. We are using more and more land to farm animals for food, contributing to potentially catastrophic climate change and biodiversity loss (the variety of different living things found in the environment).
Herd of cattle graze in a pasture near a village/Image credit: World Bank Photo Collection , CC BY-NC-ND 2.0
Deforestation / Image credit: World Bank Photo Collection , CC BY-NC-ND 2.0
You may think that eating insects sounds disgusting. Many of us don’t like the idea of munching on a mantis or crunching a cricket but, with rising demand for meat protein, could insects provide a solution for this global problem?
Insects to the rescue?
At the moment, most insects that are eaten come from the wild but there are lots of good reasons to consider farming insects.
The demand for meat and dairy products has resulted in more and more land being used for farming, leading to the destruction of many habitats. This is having a devastating effect on our planet’s biodiversity as many plant and animal species have nowhere to thrive and many are now under threat. Farming insects, however, needs much less land and water. For example, 400 square metres of land are needed to produce just 1 kilogram of beef, but 1 kilogram of crickets can be produced from just 30 square metres.
Another problem with cattle farming is the production of greenhouse gases. Cows and other large animals produce huge quantities of methane; a greenhouse gas that contributes to global warming. At the moment, livestock are responsible for more greenhouse gases than all the cars, planes and other forms of transport in the world. In contrast, most insects don’t produce methane gas as a waste product.
Of course, it’s not as simple as just switching from farming cows to farming crickets. What about the millions of farmers around the world who rely on rearing cattle for their living? What would happen to all the land that is currently being used to farm livestock? Is it ethical to kill insects for food? Read on for some suggestions about where to find out more about these issues and debates.
Find out more
If you are interested in finding out more about sustainability of meat production and consumption, including the idea of eating insects, why not:
- Visit Meat the Future. This exhibition, opening on 28th May 2021 here at Oxford University’s Museum of Natural History, looks at the health, environmental, social and economic impacts of meat and dairy production and consumption, and explores the future of food by examining the findings of the Livestock, Environment and People Project (LEAP).
- Take a look at these videos and articles which talk more about the issue of sustainability in farming and discuss the pros and cons of eating and farming insects:
Arguments against eating insects
What do you think?
We would love to hear what you think on this issue. Do you think farming insects is a good idea? Would you eat a beetle burger? Do you think there are other ways to cut global consumption of meat and dairy products? Let us know you thoughts below or by using the Contact Us page.