High up in the stratosphere, naturally occurring ozone reflects solar radiation back into space, protecting people and the planet from harmful ultraviolet rays. But closer to Earth’s surface, rising ozone levels – formed when pollutants from a wide range of sources react ...

We know that air pollution is a big problem – for health, climate, food security and more. But there’s a difference between generally knowing that “we need to do something” and actually marshalling the allies, resources and power to act. Before we ...

Buses are one of the major sources of emissions in many cities, and they are undergoing a quiet revolution. A confluence of improved technology and increasing demand, driven by air pollution that is getting harder to ignore and more stringent ...

Chennai faced a devastating flood in 2015 that killed hundreds of people and displaced many more. Today, the southern Indian city’s four main reservoirs are virtually dry. This crisis is not only due to lack of water. Lack of proper management is ...

Last week, I had the pleasure of participating in a day-long roundtable discussion with the five finalists for the WRI Ross Prize Cities, organized by WRI at the Ford Foundation in New York City. The roundtable followed the first-ever award ...

Innovation and government don’t always go hand in hand. Yet the opportunity for innovation in the mobility sector has never been so ripe. Companies all over the world are creating and deploying the next generation of disruptive transport solutions, from ...