State of the Planet

News from the Columbia Climate School

Millennium Cities Initiative7

  • Tides Foundation Awards $1.9 million Matching Challenge Gift to the Earth Institute to Promote Sustainable Urban Development in Sub-Saharan Africa

    In a landmark contribution to the Millennium Cities Initiative (MCI) of the Earth Institute at Columbia University, the Tides Foundation has awarded MCI with a challenge gift of up to $1.9 million. The gift will support the project’s work to assist selected mid-sized cities across sub-Saharan Africa to promote sustainable development and achieve the Millennium…

  • Movement to End Poverty Goes Urban in Africa

    Sustainable development demands that two disparate systems — urban and rural — equally meet the needs of their inhabitants without overburdening natural resources. The sustainability of agriculturally based villages, for example, depends on the health and well being of cities for access to large markets and services. Put simply, the sustainable development of one requires…

Blue banner with kids and Earth photos. Text: "Lamont-Doherty Earth Observatory Open House, Saturday, October 17, 2026, 10am-4pm.

On Saturday, October 17, 2026 from 10am to 4pm, Lamont-Doherty Earth Observatory Open House—our biggest, best science fun and discovery event of the year—will take place on our beautiful campus in Palisades, NY. Mark your calendar and join us for this free, family-friendly celebration of science! RSVP Today!

  • Tides Foundation Awards $1.9 million Matching Challenge Gift to the Earth Institute to Promote Sustainable Urban Development in Sub-Saharan Africa

    In a landmark contribution to the Millennium Cities Initiative (MCI) of the Earth Institute at Columbia University, the Tides Foundation has awarded MCI with a challenge gift of up to $1.9 million. The gift will support the project’s work to assist selected mid-sized cities across sub-Saharan Africa to promote sustainable development and achieve the Millennium…

  • Movement to End Poverty Goes Urban in Africa

    Sustainable development demands that two disparate systems — urban and rural — equally meet the needs of their inhabitants without overburdening natural resources. The sustainability of agriculturally based villages, for example, depends on the health and well being of cities for access to large markets and services. Put simply, the sustainable development of one requires…