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Available for over a year
The government has a target of planting an area of 30,000 hectares of new trees per year - that is roughly about 50 million or so. To help the cause, Evan Davis went to Kew Gardens in south west London to plant 'The PM Tree'. He met up with the head of the aboretum there, Tony Kirkham, who explained where the tree came from. (Photo: The label of the PM tree - Oregan Ash Credit: 91福利社)
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