Clean air in Tokyo

I visited Tokyo last week. I observe that the air was quite clean.My host said that this is due to the strict measures taken by the auhority in controlling pollution.

This was a big improvement from the situation 30 years ago. At that time, many people had to wear face masks to avoid breathing the polluted air.

Perhaps most of the manufacturing had moved to China. In many cities in China, the pollution is quite bad. I hope that the authority will take the appropriate measures to control the pollution and improve the quality of life. This will add to the cost of manufacturing, but will still make China quite competitive.