Obviously water resources will be a bigger problem in future but the air quality problem is new to me. I did not perceive a problem when I was there in the 1990s but was very much aware of it in Kolkata. They could learn much from the effort to control air quality in Mexico City.
Published by Peter Styles, Independent - Consultant (retired)
Obviously water resources will be a bigger problem in future but the air quality problem is new to me. I did not perceive a problem when I was there in the 1990s but was very much aware of it in Kolkata. They could learn much from the effort to control air quality in Mexico City.