The more you borrow, the more carbon-credits you accumulate. These credits are based on a nominal carbon-footprint saving from borrowing rather than buying. There are many ways and sources of buying, so we use an aggregate score based on a most-likely way of buying a particular item, and the score is based on the environmental benefits of the entire process from factory to home, and takes into account energy saved from the raw material extraction, the manufacturing process, energy, packaging and transport costs from factory to your front door.
When you borrow an item, let us know at borrower@reebba.com and we will add the score to your total.
Hazel Clover
Simon Sherrington