The "Circular Challenge" was an event aimed at promoting a sustainable lifestyle by encouraging small changes in daily habits. The challenge involved a daily task related to reducing waste, such as using reusable cups or reducing energy consumption. The event was conducted over a period of five days, with participants joining a group chat to receive the daily challenges and share their progress. The challenge was well-received, with many participants sharing their experiences and encouraging others to participate. Overall, the event was a great success in raising awareness about sustainability and inspiring people to make small changes in their daily lives to reduce their environmental impact.