Sustainable Urban Development: Creating Better Places to Live

According to a UN World Cities report, globally by 2030 it is projected that there will be 706 cities with at least one million residents; and there will be 43 megacities (which are cities with over 10 million people). As life in urban environments continues to grow, 我们能做些什么才能使它们处于有利地位，既能让人们繁荣发展，又能确保最大限度地关注环境问题? Find out in this episode of 如果/当.