Photo: LIC/Flickr No matter how you measure it, the impact of air pollution is startling. According to new research, air pollution worldwide cuts life expectancy by 1.8 years for an average person…

Javier Morales Sarriera, Gurpreet Singh Sehmi |

As the world rushes to reduce the negative impacts of climate change, ambitious sub-national actors are rising to the fore. The recent One Planet Summit exemplifies this trend. Earlier this month…

Prashant Kapoor, Marc Forni |

For two and a half years, more than 4, 000 people have worked to build Line 1 of the Quito Metro, a mass transit system that extends 22 kilometers across the city.   With its 15 modern stations,…

Julio Cesar Casma, Cristina Medina |

The impact of climate change on hydrology and other natural resources, and on many sectors of African economies—from agriculture to transport, to energy—has been widely researched and discussed.…

Magda Lovei |

Life is shifting fast for coastal communities in West Africa. In some areas, coastlines are eroding as much as 10 meters per year. Stronger storms and rising seas are wiping out homes, roads and…

Karin Erika Kemper |

Also available in: Français | Español | العربية The premise behind the Sustainable Cities photo competition was simple. [[tweetable]]We wanted to learn what people around the world “see” when they…

Xueman Wang, Dini Djalal |

Rapidly rising sea levels in Benin lend new meaning to castles built on sand. Photo: Jonathan Marks/FlickR I was raised in a small town called Hornsea on England’s east coast, a magnificent place…

James Close |

In East Africa and West Africa, about 300 million people living in dryland areas rely on natural, resource-based activities for their livelihood. By 2030, this number could increase to 540 million…

Magda Lovei |

Image: Miguel Antonio Toquica Onzaga/ World Bank Much of West Africa’s population lives along its coastline, where many of its capital cities are located. But though rising seawaters erode it, a…

Miguel Antonio Toquica Onzaga |