Nigeria, Aug. 30 -- The tour of Hangzhou was quite revealing and enriching.

As I noted in the first part of this experience, we had 12 lectures. But it wasn't just lectures. Beyond sitting in classrooms and listening to erudite instructors and professors, we had field visits. Each visit revealed something new, something unique, and sometimes what appeared to be an opening to a vista of opportunities.

We had 12 field visits, and each was eye-opening. But some left particularly lasting impressions on us.

One of them was our visit to the Jiufeng Waste Incineration Plant in Nanfeng Village, Yuhang District, Hangzhou. It was eye-opening.

We saw waste utilisation, high-standard environmental protection treatment and smart operations working...