[Note the planet-killing bottled water close at hand]
In case you were wondering about the ecological impact of the 'UN's biggest ever summit', you'll be relieved to hear the UN has used 19 million fewer sheets of paper than it'd expect to for a conference of this size, according to Magnus Olafsson, who heads the UN's PaperSmart initiative.
The carbon footprint is obviously tricky to pin down, but the UN's own 1,400 staff will generate 3,600 tonnes of CO2, largely from air travel, which will be offset.
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