The presented pie charts illustrate the composition of various waste types discarded in a specific country during the years 1960 and 2011.
Overall, notable shifts can be observed in the proportions of paper and plastic waste, alongside more modest fluctuations in several other categories.
In terms of significant changes, paper waste exhibited a sharp decline, decreasing from 25% in 1960 to 15% in 2011. Conversely, plastic waste demonstrated a substantial increase, rising from 9% to 18% over the same period. Furthermore, food waste saw an upsurge from 5% in 1960 to 9% in 2011. Green waste also experienced a notable increase, from 17% to 21%, reflecting a growing trend toward organic waste disposal. Meanwhile, wood waste remained stable at 8%, while textile waste displayed no change, remaining steady at 4%.
In contrast, there were minimal fluctuations in metal and glass waste categories. Metal waste experienced a slight decrease from 12% to 11%, while glass waste remained unchanged at 9%. This suggests that, despite changes in other types of waste, certain materials maintained consistency in their disposal rates. Overall, these data points indicate a shifting landscape in waste management practices, with a marked transition from paper-based to more diverse forms of waste, particularly plastics and organic materials.