The World Bank publication “More growth, less garbage”, estimates waste generation to grow from 2.24 billion tonnes in 2020 to 3.88 billion tonnes by 2050 under a business-as usual scenarios. It will then stand at 1.09 kg of waste per capita per day, on average. This 70 % increase will not be only driven by demographic growth (world population is expected to reach 9.7 billion in 2050, meaning 25 % increase as compared with 2021) but also by increases in prosperity and urbanization in the developing countries where waste generation is expected to triple. There is indeed a strong positive correlation between waste generation per capita and GDP per capita. Here is some projections from the World Bank on the total waste generation by region.
Sustainable Synergies 