Singapore has introduced futuristic vertical algae panels along busy highways to fight urban pollution right where it’s produced. These living green walls act as biological air filters, absorbing carbon dioxide and releasing oxygen while traffic flows just a few feet away. The project combines biotechnology and urban design to improve air quality in one of the world’s densest cities. • The panels contain microalgae that naturally absorb CO₂ from vehicle emissions and convert it into clean oxygen

676K views · 10K reactions | The 3D digital billboard at Wangfujing in Beijing offers a futuristic visual effect that amazes passersby | Xi's Moments | Facebook