The long-running series in which readers answer other readers’ questions considers a hot topic within renewable energy
This week’s replies: Are there places on Earth where humans haven’t been?
I would like to know why we build solar farms over green space, when we could just put them over massive car parks as a popular current internet meme suggests. Chris, Middlesbrough
Post your answers (and new questions) below or send them to nq@theguardian.com. A selection will be published next Sunday.

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