That's an interesting question! If you look at residential areas in most cities around the world, you'll notice a definite color pattern when it comes to trash cans. While there are regional variations, green is overwhelmingly the most popular color for urban residential trash containers.
There are several practical reasons for this preference. Green blends well with outdoor environments, making the bins less visually intrusive in neighborhoods and parks. Municipalities often choose green because it's associated with nature and environmental consciousness, which aligns with recycling and waste management messages. The color also hides minor dirt and stains better than lighter colors, while remaining more visible at night than black containers.
That being said, some cities use color-coding systems where green indicates general waste, while blue might designate recycling bins, and black could be for organic waste. This system helps residents sort their trash correctly and makes collection more efficient for sanitation workers. In hotter climates, you might see more light-colored bins to reflect heat, but green remains the global standard for good reason - it simply works best for urban living.