The Lost Stroke is a campaign that merges poetic expression with environmental activism. Drawing on the visual elegance of Chinese calligraphy, the campaign centers around the character “竖” (Shù), symbolising both "vertical strokes" and "trees”. As deforestation accelerates due to climate change, each missing stroke in the poem reflects a vanishing tree—visually and metaphorically representing ecological loss. The poem unfolds into a mountain-forest landscape, where fragmented characters mirror the fragmented forests we are losing. By blending typography, landscape imagery, and traditional Chinese poetry, The Lost Stroke creates a poignant visual narrative that highlights the urgency of forest conservation and invites reflection on what is disappearing—stroke by stroke, tree by tree.