well, with us is douglas mcmaster, owner of silo. douglas, thanks for having us. absolute pleasure.possible to be totally zero waste? let's not say 100%, but it's possible to be 99.9%. what do you do with the waste that you do produce? so the inevitable 0.1% of waste that does exist, we collect it into a little container, and that is what we have named alien waste. but obviously most venues are not this efficient. food waste is such a big problem for the environment that if food waste was a country, it would be the third biggest carbon emitter after china and the us. and in the future, food might take a very differentjourney after you throw it away. can i take you on thatjourney? let's go. picture a tasty—looking breakfast buffet. all those dishes appetisingly full to choose from, even if you arrive just before it is due to close. nobody wants to waste food, but inevitably it does happen. so how about being able to use the leftovers on your plate to power your home? thank you. well, we have been looking at some of the latest ideas that aim to do that, as well as a device that uses a