State of the Planet

News from the Columbia Climate School

sustainable development43

  • Denmark’s New Mark: Fossil-free by 2050

    Denmark’s New Mark: Fossil-free by 2050

    Last Monday, October 11th, Columbia University’s Earth Institute and the Consulate General of Denmark co-hosted “The Climate Challenge: Revitalizing the Debate”. The daylong symposium included three panel sessions, in which experts from academia, the private sector, government and non-governmental organizations discussed the effects and implications of global climate change as well as steps –both taken…

  • Peruvians Fight for Their Right to Water

    Peruvians Fight for Their Right to Water

    On September 17, one man was killed and 18 others injured when police attempted to break up demonstrators protesting an irrigation project recently approved by the Peruvian government.

  • $3.8 Million Raised for Millennium Cities Initiative

    The Earth Institute successfully completed a $1.9 million landmark challenge grant, awarded by the Tides Foundation, to benefit the Millennium Cities Initiative (MCI). Because of the Tides challenge and our generous donors, a total of $3.8 million has been raised to support the project’s work to help targeted mid-sized cities across sub-Saharan Africa promote sustainable…

  • New Private Funds to Support Millennium Development Goals

    Today, two of the world’s leading companies announce grants and technical support totaling more than $1,000,000 aimed at ending global poverty by 2015. Nestlé and the Novartis Foundation for Sustainable Development each pledged support for the Earth Institute’s work through the Millennium Villages project (MVP) as world leaders gather at the Millennium Development Goals summit…

  • More Ways to Study Sustainable Development Than Ever Before

    More Ways to Study Sustainable Development Than Ever Before

    There are several new courses and educational opportunities open to students this fall: Undergraduate Major in Sustainable Development (NEW MAJOR) Economic and Financial Methods for Sustainable Development (Satyajit Bose) The objective of this course is to introduce students to the skills and methods necessary to understand and evaluate the economic and financial aspects of sustainable…

  • Privatizing Responsibility on Water Use

    Privatizing Responsibility on Water Use

    I would like to say congratulations to the Environmental Protection Agency for it’s recent “We’re for Water” campaign to promote responsible water use (after all, who can argue with low-flow toilets and efficient showerheads?) but I am seriously concerned about the campaign’s underlying message. “We’re for Water” features families competing with each other to see…

  • Global Population Growth and Water Scarcity Q&A

    Global Population Growth and Water Scarcity Q&A

    Russell Sticklor with the Wilson Center’s Environmental Change and Security Program in Washington, DC. recently contacted me requesting my thoughts on a number of issues for an article he is writing on global population growth and water scarcity for the magazine, Outdoor America. I thought some of the comments might be interesting to our blog…

  • New Initiative to Fast-Track Development in Dry Areas of East Africa

    Ministers from six countries in the region endorse project targeting pastoralist communities

  • The PlayPump: What Went Wrong?

    Earlier this week, PBS’s Frontline ran a story about the PlayPump, a technology that was supposed to bring drinking water to thousands of African communities by harnessing the power of children at play. Now dozens of PlayPumps in Mozambique sit idle, and in many villages PlayPumps have been removed, and hand pumps reinstalled.

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

  • Denmark’s New Mark: Fossil-free by 2050

    Denmark’s New Mark: Fossil-free by 2050

    Last Monday, October 11th, Columbia University’s Earth Institute and the Consulate General of Denmark co-hosted “The Climate Challenge: Revitalizing the Debate”. The daylong symposium included three panel sessions, in which experts from academia, the private sector, government and non-governmental organizations discussed the effects and implications of global climate change as well as steps –both taken…

  • Peruvians Fight for Their Right to Water

    Peruvians Fight for Their Right to Water

    On September 17, one man was killed and 18 others injured when police attempted to break up demonstrators protesting an irrigation project recently approved by the Peruvian government.

  • $3.8 Million Raised for Millennium Cities Initiative

    The Earth Institute successfully completed a $1.9 million landmark challenge grant, awarded by the Tides Foundation, to benefit the Millennium Cities Initiative (MCI). Because of the Tides challenge and our generous donors, a total of $3.8 million has been raised to support the project’s work to help targeted mid-sized cities across sub-Saharan Africa promote sustainable…

  • New Private Funds to Support Millennium Development Goals

    Today, two of the world’s leading companies announce grants and technical support totaling more than $1,000,000 aimed at ending global poverty by 2015. Nestlé and the Novartis Foundation for Sustainable Development each pledged support for the Earth Institute’s work through the Millennium Villages project (MVP) as world leaders gather at the Millennium Development Goals summit…

  • More Ways to Study Sustainable Development Than Ever Before

    More Ways to Study Sustainable Development Than Ever Before

    There are several new courses and educational opportunities open to students this fall: Undergraduate Major in Sustainable Development (NEW MAJOR) Economic and Financial Methods for Sustainable Development (Satyajit Bose) The objective of this course is to introduce students to the skills and methods necessary to understand and evaluate the economic and financial aspects of sustainable…

  • Privatizing Responsibility on Water Use

    Privatizing Responsibility on Water Use

    I would like to say congratulations to the Environmental Protection Agency for it’s recent “We’re for Water” campaign to promote responsible water use (after all, who can argue with low-flow toilets and efficient showerheads?) but I am seriously concerned about the campaign’s underlying message. “We’re for Water” features families competing with each other to see…

  • Global Population Growth and Water Scarcity Q&A

    Global Population Growth and Water Scarcity Q&A

    Russell Sticklor with the Wilson Center’s Environmental Change and Security Program in Washington, DC. recently contacted me requesting my thoughts on a number of issues for an article he is writing on global population growth and water scarcity for the magazine, Outdoor America. I thought some of the comments might be interesting to our blog…

  • New Initiative to Fast-Track Development in Dry Areas of East Africa

    Ministers from six countries in the region endorse project targeting pastoralist communities

  • The PlayPump: What Went Wrong?

    Earlier this week, PBS’s Frontline ran a story about the PlayPump, a technology that was supposed to bring drinking water to thousands of African communities by harnessing the power of children at play. Now dozens of PlayPumps in Mozambique sit idle, and in many villages PlayPumps have been removed, and hand pumps reinstalled.