State of the Planet

News from the Columbia Climate School

Water10

  • Water Human Rights: Physical Scarcity

    In my previous blogs, I defended water as a human right and began the discussion of ways in which the human right to clean water is violated. I have already discussed how economic scarcity occurs, and this week I will be discussing physical scarcity of water. Physical scarcity is the issue that the water just…

  • Water Human Rights: Economic Scarcity

    In my earlier blog, I began arguing that water is a human right, and that the extreme lack of potable water is a significant human rights violation.  The scale of the human rights violation of the right to drinking water is on an extremely large scale. The largest occurrence of this right being violated is…

  • Water – a Human Right?

    In the world, over one billion people live without access to clean water resources. These people have extremely large death rates to completely preventable, waterborne illnesses. It is estimated that over two million people die every year from preventable waterborne diseases, and a large percentage of those people are children under the age of five.…

  • Down by the River, Running Out of Water

    Too little water for too many people is a growing problem in poor countries–and in thriving suburban Rockland County, N.Y., just north of New York City. A new website, Water Resources in Rockland County, lays out the case, and neatly puts it into global context. The site is run by the Earth Institute’s Center for International Earth Science Information Network…

  • Arsenic in Bangladesh Water, Then and Now

    Back in the summer of 1997 while working for a small newspaper focusing on UN development issues, I traveled to Bangladesh to see how far this often overlooked country tucked away in a corner between India and China had fared since its independence 25 years ago. At the time the only stories which came out…

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

  • Water Human Rights: Physical Scarcity

    In my previous blogs, I defended water as a human right and began the discussion of ways in which the human right to clean water is violated. I have already discussed how economic scarcity occurs, and this week I will be discussing physical scarcity of water. Physical scarcity is the issue that the water just…

  • Water Human Rights: Economic Scarcity

    In my earlier blog, I began arguing that water is a human right, and that the extreme lack of potable water is a significant human rights violation.  The scale of the human rights violation of the right to drinking water is on an extremely large scale. The largest occurrence of this right being violated is…

  • Water – a Human Right?

    In the world, over one billion people live without access to clean water resources. These people have extremely large death rates to completely preventable, waterborne illnesses. It is estimated that over two million people die every year from preventable waterborne diseases, and a large percentage of those people are children under the age of five.…

  • Down by the River, Running Out of Water

    Too little water for too many people is a growing problem in poor countries–and in thriving suburban Rockland County, N.Y., just north of New York City. A new website, Water Resources in Rockland County, lays out the case, and neatly puts it into global context. The site is run by the Earth Institute’s Center for International Earth Science Information Network…

  • Arsenic in Bangladesh Water, Then and Now

    Back in the summer of 1997 while working for a small newspaper focusing on UN development issues, I traveled to Bangladesh to see how far this often overlooked country tucked away in a corner between India and China had fared since its independence 25 years ago. At the time the only stories which came out…