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Harnessing co-benefits through measures that reduce the negative impacts of air pollution and of global warming , while ensuring energy security , offer considerable potential . Piracies , works published without the authority of or payment to the author or legitimate publisher , flourished in the eighteenth century in Ireland and the United States . Leaves 1 and 6 were apparently produced independently of the other leaves , although all we can say at this point is that leaves 1 and 6 are conjugate . The fact that the tooling on the two volumes is different , as are the ndpapers inside the volume , suggests that this set probably belonged to a family of modest means , which could only afford to have one volume bound at a time . Despite these high figures , the negative impacts of these air pollutants have received little attention in many parts of the world for a variety of reasons , including insufficient information on the status of the damaging pollutants and their impacts , the costs to the economy of corrective action , and the fact that the affected populations are primarily the poor .