This is terrible. Japan is getting under China's blanket of gross air contamination. The situation is getting bad pretty quickly—proof that we need to think globally about gas emission controls. It's not just about raising sea levels in the future. It's about getting cancer now.
Osaka issued its first pm2.5 warning today. But it wasn't the only place in Japan to do so.
Japan's neighbor China is covered with pollution. It's a serious problem, and the long standing fear in Japan has been that the dirty air, which is rife in concentration of 2.5-micrometer particles, will drift over.