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 ...

People and goods are on the move faster and farther than ever. All that movement comes at a cost – not just the sticker price of a new car, train ticket or shipping bill, but also an environmental cost. Transport, ...

In March, China’s southern island province of Hainan became the first in the country to set a date by which all sales of internal combustion engine vehicles are to be ended. Hainan’s Clean Energy Vehicle Development Plan sets out a ...

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 ...

Over the past 50 years, transport planners have tended to focus on reducing congestion to improve people’s mobility within cities. But increasing road capacity, vehicle speeds and parking spaces have not solved urban traffic. Building more roads and parking just ...

Sexual assault on public transit is all too common. In Bogotá, Colombia, an incredible 37% of female riders of the bus rapid transit system report experiencing unwanted sexual contact while using the system, according to new research, funded in part ...