State of the Planet

News from the Columbia Climate School

Water Scarcity6

  • Preparing for Chimborazo

    Preparing for Chimborazo

    I am staying with a friend’s family in Quito, Ecuador’s capital city, and tomorrow will meet up with my climbing partner, Pablo Puruncajas, to prepare for our expedition. I am here to collect tree ring samples and put up a weather station on Chimborazo, Ecuador’s tallest peak, to provide climate data about this region, which…

  • Watering the World’s Crops, Drop by Drop

    Watering the World’s Crops, Drop by Drop

    Dr. Daniel Hillel was recently honored with the World Food Prize for his pioneering work in sustainable agriculture.

  • Preparing for a Future of Perpetual Drought

    Preparing for a Future of Perpetual Drought

    The Intergovernmental Panel on Climate Change projects that droughts will likely increase in central North America this century. How can we prepare for a future of perpetual drought?

  • Investigating Impacts of Increased Fertilizer Use in Africa

    Investigating Impacts of Increased Fertilizer Use in Africa

    The rains came late this year in Kenya. I was there for several months in the winter and spring to conduct research for a post-doctoral fellowship, examining the consequences of increases in fertilizer use on soil fertility, maize yields, nitrogen gas emissions and nitrogen leaching losses.

  • Water Risks for Industry in India – New Report from Columbia Water Center

    Water Risks for Industry in India – New Report from Columbia Water Center

    Companies globally are increasingly focused on the emerging risk of water scarcity, and so are their investors. The combination of rising populations, rapid economic growth in developing countries, and climate variability is triggering enormous water availability challenges around the world. We are at a critical juncture where the crises of food, energy and water, commodity…

  • Deeper than Water — New Video and Infographics from the Columbia Water Center

    Deeper than Water — New Video and Infographics from the Columbia Water Center

    As population grows and demand for food and products increase, so does our demand for water. But in the face of growing pressure on our water resources from depletion, pollution and climate change, we need to make more of what we have.

  • Water, Water Everywhere, But Nary a Drop to Drink

    Water, Water Everywhere, But Nary a Drop to Drink

    It is a unique challenge of our generation that many in the developing world have cellular phones and TVs, but lack reliable access to water. Odd, perhaps, given that water is marketed as essential for life, a human right, and heart rending pictures of women and children walking miles to fetch water are routinely flashed…

  • Student ‘Aquanauts’ to Tackle Water Issues

    Student ‘Aquanauts’ to Tackle Water Issues

    “We would like to take on international problems, problems of development, problems in the United States, but have them done with academic content and interest. Instead of people being sent to random places, we would take engineering companies that have an interest in a particular region in solving a problem, and they would bring the…

  • What’s in Your Rice? A Look at Where Rice in the U.S. Comes from

    What’s in Your Rice? A Look at Where Rice in the U.S. Comes from

    US rice production dominates our consumption at over 90% (USDA, 2012), and the question is whether or not that choice is the best one for our water and our environment.

Photo of the Earth from space with the text "Lamont at AGU25" on top.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More

  • Preparing for Chimborazo

    Preparing for Chimborazo

    I am staying with a friend’s family in Quito, Ecuador’s capital city, and tomorrow will meet up with my climbing partner, Pablo Puruncajas, to prepare for our expedition. I am here to collect tree ring samples and put up a weather station on Chimborazo, Ecuador’s tallest peak, to provide climate data about this region, which…

  • Watering the World’s Crops, Drop by Drop

    Watering the World’s Crops, Drop by Drop

    Dr. Daniel Hillel was recently honored with the World Food Prize for his pioneering work in sustainable agriculture.

  • Preparing for a Future of Perpetual Drought

    Preparing for a Future of Perpetual Drought

    The Intergovernmental Panel on Climate Change projects that droughts will likely increase in central North America this century. How can we prepare for a future of perpetual drought?

  • Investigating Impacts of Increased Fertilizer Use in Africa

    Investigating Impacts of Increased Fertilizer Use in Africa

    The rains came late this year in Kenya. I was there for several months in the winter and spring to conduct research for a post-doctoral fellowship, examining the consequences of increases in fertilizer use on soil fertility, maize yields, nitrogen gas emissions and nitrogen leaching losses.

  • Water Risks for Industry in India – New Report from Columbia Water Center

    Water Risks for Industry in India – New Report from Columbia Water Center

    Companies globally are increasingly focused on the emerging risk of water scarcity, and so are their investors. The combination of rising populations, rapid economic growth in developing countries, and climate variability is triggering enormous water availability challenges around the world. We are at a critical juncture where the crises of food, energy and water, commodity…

  • Deeper than Water — New Video and Infographics from the Columbia Water Center

    Deeper than Water — New Video and Infographics from the Columbia Water Center

    As population grows and demand for food and products increase, so does our demand for water. But in the face of growing pressure on our water resources from depletion, pollution and climate change, we need to make more of what we have.

  • Water, Water Everywhere, But Nary a Drop to Drink

    Water, Water Everywhere, But Nary a Drop to Drink

    It is a unique challenge of our generation that many in the developing world have cellular phones and TVs, but lack reliable access to water. Odd, perhaps, given that water is marketed as essential for life, a human right, and heart rending pictures of women and children walking miles to fetch water are routinely flashed…

  • Student ‘Aquanauts’ to Tackle Water Issues

    Student ‘Aquanauts’ to Tackle Water Issues

    “We would like to take on international problems, problems of development, problems in the United States, but have them done with academic content and interest. Instead of people being sent to random places, we would take engineering companies that have an interest in a particular region in solving a problem, and they would bring the…

  • What’s in Your Rice? A Look at Where Rice in the U.S. Comes from

    What’s in Your Rice? A Look at Where Rice in the U.S. Comes from

    US rice production dominates our consumption at over 90% (USDA, 2012), and the question is whether or not that choice is the best one for our water and our environment.