A simple 0.5 litre PET bottle
Whenever we finish drinking the contents of a PET bottle, we take it to the money-back machine at a supermarket bottle bank, place it in the machine, return it to the materials cycle and get our deposit refunded. Environment-friendly systems of this kind cannot be found everywhere - often these bottles are simply thrown away, turning into gigantic mountains of refuse, or are thrown away in forests and waterways, threatening entire eco-systems.
Not so with uma. We take responsibility.