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Continue to ChatExcess heat from London Underground to warm Islington homes (Wired UK) http://spinneyhead.co.uk/2013/11/21/excess-heat-from-london-underground-to-warm-islington-homes-wired-uk/
Excess heat from London Underground to warm Islington homes (Wired UK) http://spinneyhead.co.uk/2013/11/21/excess-heat-from-london-underground-to-warm-islington-homes-wired-uk/