
CO₂, Temperature & Humidity - By D. Gold, Edited By Ed Rosenthal
CO₂, Temperature & Humidity was written for the hobbyist. Its easy to understand, and describes exactly how to set up the system in your space. CO₂ is a gas found in the air. It is also a nutrient essential for plant growth. Indoor and greenhouse gardens can enrich the atmosphere with it and increase plant growth by up to 200%!