10 ways to build more sustainable cities

As global population grows, urban population is growing even faster — with 2.5 billion more city dwellers expected by 2050, according to the United Nations. And while urbanization can bring benefits in terms of economies of scale, social cohesion, technological innovation, transportation efficiency and more, cities can also be breeding grounds for poverty, pollution and malaise. To help inspire cities to make the most of the opportunities and minimize downsides of growth, the World Economic Forum recently published “Top Ten Urban Innovations,” showcasing new ideas for boosting urban sustainability. The examples fall into four broad categories: better using underused capacity, evening out demand over time, encouraging small-scale infrastructure, and people-centered design. Each includes a “why” and “what” as well as an assessment of the potential for improving global well-being. Most also include a list of links for more information. Here’s a quick summary: Reprogramming Space In growing cities, the need for infrastructure can quickly outpace our ability to build it. Vancouver, Glasgow, New York and others are tackling this head-on by repurposing and densifying use of existing urban land rather than building out, and by designing buildings in a way that allows them to switch functions — for example, from a theater to a night club — as needs change. An Internet of Pipes Clean, readily available water supplies are a growing concern for growing cities. Efforts to meet future needs include a variety of Internet-based innovations aimed at managing water challenges such as flood control, rainwater management, supply distribution, pipe leakage reduction and sanitation management. Twitter for Trees Urban trees help reduce temperature extremes, moderate stormwater surges, sequester carbon and capture nutrients from runoff. Melbourne is boosting interest in and appreciation for urban forests by inviting its residents to adopt and name individual trees and share updates, including carbon offset and other information, via social media. Augmented Humans People-powered transit not only helps make cities cleaner and less congested, it also can boost human health and well-being. But bicycling can sometimes seem too demanding for a workday commute. To make it more appealing and accessible, innovators are developing products … Continue reading 10 ways to build more sustainable cities