For the sake of discussion:
Many of you have likely seen the plastic bottle green houses. I will post a picture. Cool idea. I'm thinking to take that a step further with glass bottles instead since glass is an insulator I would think the glass greenhouse would hold more heat.
THE QUESTION: Clear vs Brown glass? Obviously darker glass would absorb more heat, but brown glass would block some light. Would the light reflected outweigh the additional heat or would the brown keep the plant from getting the necessary light nutrients in that color spectrum?
They say the plastic bottle green houses raise the temp up 10 degrees without any additional heating. I would think the glass could do even better.
