Wetlands, forests and other green spaces are the original water infrastructure. For the first time, they can now be financed through bonds – just like other built infrastructure such as treatment plants and dams.

The world needs to double its global rate of improvement in energy efficiency. To get there will require a massive effort—and right now, the United States is lagging behind.

Big buyers of electricity have keyed in on a single metric, but a more holistic understanding of leadership can unlock creative ways to accelerate the renewables revolution.