Ali Garrigan, currently one of six Greenpeace activists climbing exterior of The Shard, has compared the rise in temperatures in London to that of the Arctic.
Near the top thinking about the 1.4 degree rise here and the 10 degree rise in the Arctic. Scary. #IceClimb
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Passengers looked horrified as the girl took the potentially lethal shortcut between platforms.
Police were called to Kilburn High Road at 5.20pm after reports of a shooting.
In just 24 hours the offer was retweeted more than a thousand times on Twitter.