Originally posted by oddoneout
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Under "normal" [sic] environmental circumstances, nature's capacity for recovery and self-renewal is remarkable, even at our latitude, as anyone who lives in this district with an interest in the local history can testify from taking a stroll through the nearby Dulwich Wood and observing how completely nature has reclaimed what had been a double-tracked railway route for nearly a hundred years until its closure in 1961. That route is now largely a nature track where it has not been overbuilt with housing, and one would not have known of its previous use were it not for the tunnel entrances at four points, and a footbridge which has on it a laminated poster depicting the view to it north as painted by the great Pissaro in 1870. Whether or not such natural recovery could still ensue under conditions averaging more than 2.5 degs celsius, without necessitating introduction of species currently foreign to unhindered natural succession is an important question.
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