Browse and view videos. Interview: Axel Friedrich Click here to listen to German emissions expert Alex Friedrich on the subject of how cities worldwide are making their air more breathable. Duration: 6:53 minutes Interview: Armin Bauer Armin Bauer, Principal Economist of the Asian Development Bank, addresses poverty reduction within urban development. Duration: 7:07 minutes Pages « first ‹ previous 1 2 3 4 5