It's become a problem of global proportions. According to the World Bank, about two billion tonnes of waste are produced every year, and world leaders are struggling to figure out what to do with it all.
Should it be buried, recycled or shipped off to another country?
It's an issue they are grappling with right now in East Delhi, India. They are fighting to contain a 65-metre high mountain of rubbish that gets larger every year.
Similar scenarios are repeated globally.
One of the problems is that recycling is now an estimated $200bn industry, a huge incentive to limit what's done to change direction in the waste business.
So what are the answers?
Arunabha Ghosh – CEO of the Council on Energy, Environment and Water
Sharon George – Lecturer at Keele University, specialises in green technology
Qi Ye – Director of the Institute of Public Policy, Hong Kong University of Science and Technology
Source: Al Jazeera