Thank you for the concept on CO2. It completely slipped our thoughts even after seeing it being done in a remote field.
One thing though, our idea to to test here and then make design and everything available to rural areas. Though our kitchen is big, we have to look at it from a rural area point of view. Waste is not problem in most areas though. Right now compost is made in a separate area that the greenhouse. We will have to ask them to bring it within. Most villages use compost for their vegetable gardens, so that is not a problem. The problem is with monitoring the level of digestion of the compost itself. Thank you again.