https://d2b8hn823db72v.cloudfront.net/news/global/green-urban-infrastructure-needs-us57tn-by-2030/
Urban sustainable infra bill to top US$57tn by 2030 | Global Trade Review (GTR)
Jul 14, 2016 - The need for sustainable infrastructure in cities requires a new approach to financing, with US$57tn in investment required by 2030. Today, more than half of...