These are Asia’s 22 greenest metropolises!



7. Yokohama

Yokohama, with a population of 3.7 million, is one of the richest cities in the Index with a GDP per capita of $30,200.

The city ranks above average overall in the index and does consistently well across all categories, with a ranking well above average in the water category. In 2008, the city was named one of six “environmental model cities” in Japan.

Officials have set targets to reduce the city’s greenhouse gas emissions by 30% by 2025 and 60% by 2050, and have also targeted waste reduction as a key environmental priority.