Mexico City may be the inspiration Egypt needs to de-pollute its environment

Mexico City may be the inspiration Egypt needs to de-pollute its environment: A citizen-led initiative in Mexico City — widely considered to be the world’s most polluted city — has been working to transform columns supporting bridges and flyovers into vertical gardens. The plants are irrigated through rainwater collected by the columns and through treated greywater. The project is both aesthetically pleasing and effective: Via Verde (Spanish for ‘green way’) is expected to produced enough oxygen for 25,000 people per year, suck up 27,000 tonnes of harmful gases, and capture 1,000 pounds of dust. Considering the vast number of concrete pillars in Egypt, implementing a similar project here could go great lengths in improving our air quality (watch, runtime 2:11).