The “Birdhouse” That Could Monitor Pollution and Provide Free WiFi
![](https://nextcity.org/images/made/Amsterdam_treewifi_920_491.png)
TreeWiFi rewards Amsterdam residents for cleaning up their air.
![](https://nextcity.org/images/made/californiahighspeedrail_600_350_80_s_c1.jpg)
Urbanist News - Top Stories and In-Depth Features from Next City
![](https://nextcity.org/images/made/2KGP-Render_600_350_80_s_c1.jpg)
Urbanist News - Top Stories and In-Depth Features from Next City
![](https://nextcity.org/images/made/2826347810_9e87262d60_b_920_690_80_600_350_80_s_c1.jpg)
Urbanist News - Top Stories and In-Depth Features from Next City
![](https://nextcity.org/images/made/west_chicago_radiation_600_350_80_s_c1.jpg)
The “Birdhouse” That Could Monitor Pollution and Provide Free WiFi
![](https://nextcity.org/images/made/Montreal_Mutek_600_350_80_s_c1.jpg)
Urbanist News - Top Stories and In-Depth Features from Next City
![](https://nextcity.org/images/made/Airpollutionovercity_unsplash_jacek-dylag_600_350_80_s_c1.jpeg)
The “Birdhouse” That Could Monitor Pollution and Provide Free WiFi
![](https://nextcity.org/images/made/LA_recycled_water_fill_600_350_80_s_c1.jpg)
Urbanist News - Top Stories and In-Depth Features from Next City
![](https://nextcity.org/images/made/Amsterdam_treewifi_920_491.png)
The “Birdhouse” That Could Monitor Pollution and Provide Free WiFi
![](https://nextcity.org/images/made/Chicago_MBMHMC2_600_350_80_s_c1.jpg)
Urbanist News - Top Stories and In-Depth Features from Next City