Is Shenzhen better than Guangzhou? Such as weather, environment and tourism.

I have lived and worked in these two cities and now I live in Shenzhen. If only these two cities can be compared, I think the environment in Shenzhen can be slightly better, with greenery and air. Many friends who live in Guangzhou have the same feeling. Guangzhou is colder than Shenzhen in winter and hotter than Shenzhen in summer. I think this may have a lot to do with air quality. I haven't been to Guangzhou for a long time. Once I got out of the train station, I felt a little blurred. I got used to it after a while, and the air quality should not be optimistic. If you travel, I don't think these two are tourist attractions. Shenzhen is basically a man-made landscape, so it may be better to travel to mainland cities. I hope my answer can help you.