State of the Planet

News from the Columbia Climate School

Nairobi

  • A Road Map for Minibus Electrification

    A Road Map for Minibus Electrification

    A report co-authored by the Center for Sustainable Urban Development offers recommendations for electrifying a popular mode of transportation in three African cities.

  • Jacqueline Klopp Helps Public Transit to Grow Sustainably

    Jacqueline Klopp Helps Public Transit to Grow Sustainably

    She’s finding new ways collect and share data in rapidly growing cities — and the results will help to build a healthier future for the entire planet.

  • Map & App Help People Track Transit in Nairobi

    Map & App Help People Track Transit in Nairobi

    Commuters and others traveling in and around Nairobi often rely on an unofficial network of minibuses and minivans, called matatus, that have no centrally controlled schedules, fares or route plans. But a new application developed for use on cellphones with Google Maps can now help them find their way.

Collage of Turkiye beach scene and Columbia University Campus with text: UN Climate Change Conference COP31, Antalya, Turkiye, Nov 9-20, 2026

COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More

  • A Road Map for Minibus Electrification

    A Road Map for Minibus Electrification

    A report co-authored by the Center for Sustainable Urban Development offers recommendations for electrifying a popular mode of transportation in three African cities.

  • Jacqueline Klopp Helps Public Transit to Grow Sustainably

    Jacqueline Klopp Helps Public Transit to Grow Sustainably

    She’s finding new ways collect and share data in rapidly growing cities — and the results will help to build a healthier future for the entire planet.

  • Map & App Help People Track Transit in Nairobi

    Map & App Help People Track Transit in Nairobi

    Commuters and others traveling in and around Nairobi often rely on an unofficial network of minibuses and minivans, called matatus, that have no centrally controlled schedules, fares or route plans. But a new application developed for use on cellphones with Google Maps can now help them find their way.