Currently, sea levels rise annually at 3 to 4 millimeters, with predictions of an acceleration to 4 to 9 millimeters per year due to climate change. Beyond land loss, these rising sea levels significantly affect the human-environment relationship. “Pulsation Sea” magnifies the profound chain reactions resulting from human environmental interventions. Through a “Pendulum Wave” visual effect, it portrays the dynamic connection between humans and nature, oscillating between “synchronization” and “chaos”, stimulating reflection on coexistence and facing future uncertainties.