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Opinion, by Alfonso Stefanini

RIO DE JANEIRO, BRAZIL - UN began its PaperSmart (Integrated Sustainable Papersmart Services), paperless program at Rio+20, where paper was replaced with digital media. One thing is for sure, information was hard to get at the summit and everyone at Rio Centro was a little lost.

In past conventions the UN used a system of "pigeonholes", or mailboxes, where people left a paper trail of information to the desired country or organization.

During my early teens I always . . .

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