In this April 30, 2008 file photo, a worker uses a chainsaw to cut an acacia log while clearing an area near Bukit Tiga Puluh, Riau, Central Sumatra, Indonesia. Rich and poor governments are close to reaching a historic agreement which aims to eliminate deforestation by 2030 mostly in tropical nations as part of an global effort to slash destructive greenhouse gases, delegates said. (Photo: Achmad Ibrahim/AP)
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