废弃：导论

Solid waste management affects every single person in the world, whether individuals are managing their own waste or governments are providing waste management services to their citizens. As nations and cities urbanize, develop economically, and grow in terms of population, the World Bank estimates that waste generation will increase from 2.47 billion tons in 2020 to 4.28 billion tons in 2050. At least 33% of today’s waste is mismanaged globally.

本主题涵盖多种废弃物类型，从个人或家庭层面的垃圾管理，到大规模的工业和采矿废弃物。

当我们对废弃物管理不善时，会通过水、土壤和空气污染等健康问题产生影响。危险废物或不安全的废物处理，如露天倾倒或焚烧，会直接伤害废物工人和邻近社区。像儿童这样的弱势群体面临更高的健康风险。废弃物收集不足还会导致环境和海洋污染。

由于废弃物管理不善对低收入地区影响尤为严重，解决这一问题是实现全球更大环境公平的核心。