A community-led environmental initiative named 'The Leaf-Drop Project' sought to investigate if domestic food waste recycling could be enhanced by introducing interactive sensory rewards. In a three-week study involving 150 households, researchers provided participants with a kitchen food-waste caddy modified with a digital screen and speaker. Every time organic waste was deposited, a virtual green leaf appeared on a growing 'digital tree' on the screen, accompanied by a soft, pleasant forest bird-chirp sound. Households equipped with the 'Leaf-Drop' caddy recycled 68% more organic waste by weight than a control group using standard, silent caddies. This suggests that immediate multi-sensory feedback is highly effective at shifting domestic conservation habits.
Using your knowledge of psychology, explain how introducing sensory rewards (such as digital visuals and sound effects) to domestic tasks can promote conservation behaviours. Justify your response with reference to the extract.