Leading students of Green Heart led the activity, Green Heart Online Camp under the concept of “Green School Network: Green Heart Junior” as an online event. On 14 February 2021, the student team led the activities to propagate the knowledge in energy conservation, environment, safety, and awareness toward health and climate change to the communities, and schools through their attending members. It was expected that such understanding in energy conservation, environment, and safety will grow and beneficially affect the surrounding communities as sustainable improvement to the nation. The activity was held on ZOOM application to comply with social distancing measure and KMUTT New Normal policy. The activity interested students and teachers nationwide and had accommodated more than 200 participants. As a result, the Green School Network has extended even more.