This temperature-sensitive cup features an eco-friendly material that can be digested and decomposed by living organisms, addressing the growing demand for sustainable materials. Even if accidentally ingested by marine animals, the cup can be safely broken down within their bodies, reducing harm to the environment. Additionally, both the inner and outer layers are treated with a waterproof coating to ensure structural integrity and safe usage. The visual design incorporates thermochromic ink that reacts to heat. When the beverage inside exceeds 45°C, the polar bear illustration on the cup disappears, creating an engaging and cautionary interaction. This not only reminds users to be careful with hot drinks but also evokes awareness of global warming and melting ice caps, turning a simple cup into a meaningful environmental statement.