It says the way to reduce paper use lies in cutting consumption in industrialised countries, improving papermaking efficiency, and using more recycled paper and materials other than wood in manufacture.

BBC: Half paper waste 'could be saved'

"Core tobacco control measures have long had implications for the poor - most obviously via the use of taxation to reduce consumption, " he wrote in the paper.

BBC: Should you need a licence to smoke?

It said it would use the money raised to pay off bonds maturing in 2009 and reduce its reliance on the commercial-paper market.

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