change generation graph 变化生成图
Noeleen Hayzer,executive secretary of the UN's Economic and Social Commission for Asia and the Pacific (UNESCAP) says climate change remained "the biggest challenge faced by this generation."
VOA: standard.2009.09.01
Most of the data comes from the industrialized world. Not surprisingly, burning fossil fuels for transportation and electrical generation top the list for their contributions to climate change, acid rain and toxic pollution.
VOA: standard.2010.06.04
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