9. The whole city is built on an advanced energy grid which monitors the output of every single switch and appliance.
The wind tunnel above (center) is fitted with LED lights designed to glow blue when residents are within their goal of using 50% less energy than a comparable settlement, and red when they are above their goal.
- It's the third day of the Democratic National Convention. Here's where things stand 🇺🇸
- Prosecutors have dropped remaining charges against Baltimore police officers related to the death of Freddie Gray.
- An Australian teen who was subjected to detention abuse has written a letter thanking the public for its support.