What are you worried about? Do you think the garbage is getting any less? I do not think so.
Take a look at the development of the US-company "Waste Management". This company has cleverly exploited the trend that Asian countries no longer want to dispose of our waste. The same chances also has Bingo. The garbage has to be disposed and the industry is willing to pay for it.
Maybe I am wrong, but I see a good growth opportunity in garbage ;-)