Think outside the loop: Beyond the circular economy
-Barbara Nebel, CEO, thinkstep ANZ We are hearing more and more about the circular economy as a way to reduce our impact on the environment by getting the most use out of materials. Steel is often cited as a great example of a circular product, due to its recyclability and the option to reuse elements when “design for deconstruction” principles are applied. The circular economy also has economic benefits – to reduce the need to produce new materials, and the associated cost, we can reuse what has already been produced. However, to truly reduce our impact on the environment, we need data to inform our decisions and must look beyond a purely circular approach and take other environmental impacts into account too. Comparing tomatoes with tomatoes Stepping away from the hard structure of steel for a moment to something much more fragile: the example I most often use, tomatoes, are often packaged in single-use plastic. A circular economy approach would first look at reducing packaging, or producing it using recycled materials. However, the purpose of the packaging is to reduce food waste. Companies like Tesco’s have introduced strips containing ethylene remover to reduce how fast the tomatoes ripen, extending their shelf-life further. While this introduces another packaging element, it also means that fewer tomatoes have to be produced to meet demands, reducing the resources such as water, energy and fertiliser required to grow them. If we calculate the overall environmental impact of producing packaging against the reduced food waste, we quickly see that removing packaging altogether would actually increase the overall environmental impact of tomatoes. If we then decide to produce the packaging using recycled materials, will we need to use more energy to manufacture the packaging, or more water to clean the plastic before it is recycled? Circular economy […]