Voice of America: In his previous State of the Union address, President Barack Obama highlighted what he called the urgent need to address climate change -- a topic that is likely to come up again this year. The world's two biggest polluters, the United States and China, recently announced a landmark deal aimed at breathing new life into global efforts to address climate change.
In China, where choking smog frequently fills the air, there is little debate about the need to curb emissions.
"In China, the awareness...