Why don't pumpkins belong in the trash?
When a pumpkin gets tossed in the garbage it winds up in the landfill. There, it rots and emits methane gas, a greenhouse gas.
What else can I do with leftover pumpkins?
Turn that ghastly gourd into something good: compost. Pumpkins are 90% water and decompose easily, so they're an ideal addition toward a nutrient-rich compost mix.