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Questions tagged [greenhouse]

A structure for the cultivation or protection of plants, usually made of glass and aluminium, and where temperature, humidity and ventilation can be controlled. For questions on greenhouse-effect please use the greenhouse-effect tag

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What is meant by Global-warming Potential (GWP)?

I was under the impression GWP (global-warming potential) is the measure of a gas' impact on global warming, in comparison with CO2. E.g. methane has a GWP of 86 over 20 years - Wikipedia Comparing ...
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2answers
157 views

Scavenging heat from exhaust flues

I am building a set of greenhouses. they will be 2700 sq.ft. each. I intend to grow year round in one and extend the season in the other two with them being dormant for 6 weeks mid winter. We will be ...
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4answers
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Dimensions for greenhouse to feed a family of 4?

I think a sustainable choice would be to start producing my own food in my backyard. To achieve year round production, I'll need a greenhouse. We enjoy lots of vegetables and salads on a daily basis, ...
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2answers
346 views

Local greenhouse/hothouse vegetables vs. remote naturally-grown vegetables

I've often wondered what is ecologically better: A tomato from the region grown in a (heated) greenhouse/hothouse A tomato from several thousand km away grown naturally Ceteris paribus, are there ...