some blame the government growth policies for causing the polution. others have expressed themselves in song. ♪ ♪ ♪ >> china's air pollution is believed to be making its way to neighboring countries. this map shows the distribution of suspended particles. red and purple indicate the particle levels are high. chinese foreign ministry spokesperson hong le says they need to clean up the air. >> translator: relevant authorities are taking emergency measures. the government will make more positive efforts to regulate emissions and pollution. >> chinese premier wen jiabao has ordered that effective measures be introduced to slash emissions and prompted officials to reduce the number of public vehicle services and halt factory operations. authority in eastern and inland provinces issued the new higher alert on wednesday, but their counterparts in beijing didn't. still, the heavy smog forced japanese schools in the chinese capital to cancel outdoor activities for the third straight day. >>> chinese government ships have again entered japanese waters near the