Outdoor sculptures that dissolve over time are fascinating examples of art embracing impermanence. These works, often made from materials like ice, salt, or biodegradable compounds, challenge traditional notions of durability in art. One iconic example is "The Melting Man" by Nele Azevedo, a series of small ice figures placed in public spaces that slowly melt away, symbolizing climate change. Another notable piece is "Salt and Earth" by Motoi Yamamoto, intricate labyrinths crafted from salt that eventually return to the ground. Andy Goldsworthy's ephemeral creations, using leaves, ice, or sand, also highlight nature's transient beauty. These sculptures remind us of the fleeting nature of life and the environment, leaving a lasting impression despite their temporary existence.