Install
Please confirm you are human
This browser or connection looks automated. Press and continuously hold the control for 3 seconds to enable Google-hosted web results and, when separately allowed, AI-assisted answers.
A successful check enables 100 search requests. Interactive access does not authorize scraping, systematic collection, or reuse of search output.
Hold with a pointer, or hold Space or Enter.
News
When millions leave the city, its wastewater system gets dirtier
10+ hour, 42+ min ago (913+ words) New research shows that shifting urban populations can change how efficiently sewage plants operate, revealing a potential way to cut emissions without new infrastructure. Every year, hundreds of millions of people flood out of Chinese cities for the Lunar New…...