State of the Planet

News from the Columbia Climate School

Climate221

  • Brief Broadleaf Forest Happenings: tulip goodness, delighted about Turkey, and drought

    Brief Broadleaf Forest Happenings: tulip goodness, delighted about Turkey, and drought

    I have to call myself out. Earlier I had professed to being a former coniferphile. That was, of course, silly. I like coniferous trees very much. Half of my business is made from this lovely branch of the tree family. This introduction is a lead in to say that this blog will be quieter while…

  • Tropical Plankton Invade Arctic Waters

    Researchers See Natural Cycle; But Questions Arise on Climate Change

  • For Tomorrow’s Leaders, a Tool Box for a Complex World

    For Tomorrow’s Leaders, a Tool Box for a Complex World

    How are the global leaders of tomorrow going to secure renewable sources of energy, solve the problems of water scarcity, and maintain our standard of living – all while improving health, ending poverty, and accommodating a growing population and changing environment? The World Economic Forum, with its commitment to “improving the state of the world,”…

  • China Burns up the Clean Energy Race

    China Burns up the Clean Energy Race

    Although China dominates in the race to be the leading global manufacturer of clean renewable energy, they are not necessarily doing the most for the environment. China, consistently pushing the clean energy market towards an economic future, was expected to be a leading developing country in negotiations at Rio+20. Meanwhile, the United States, without a…

  • 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.

  • Pulling CO2 From Air Vital To Curb Global Warming, Say Researchers

    But Lower-Cost Technology a Stumbling Block So Far

  • Shrinking Glaciers: A Chronology of Climate Change

    Shrinking Glaciers: A Chronology of Climate Change

    During the last ice age, glaciers dominated New Zealand’s Southern Alps until warming temperatures some 20,000 years ago sent them into retreat. Scientists at Lamont-Doherty Earth Observatory, with their colleagues, are investigating the rocky remnants these glaciers left behind to learn precisely when the ice withdrew, and what glacier retreats globally can tell us about…

  • Chasing Ghengis Khan

    Chasing Ghengis Khan

    Once you, as an outsider, spend considerable time in Mongolia, especially during Naadam and especially in the open Gobi steppe with people who still live as their ancestors did centuries ago, you will also begin to chase Chinggis Khaan.

  • Investigating the World’s Oceans, Pole to Pole and Deep Below the Bottom

    Investigating the World’s Oceans, Pole to Pole and Deep Below the Bottom

    Watch a slide show featuring ongoing research by scientists at Columbia University’s Lamont-Doherty Earth Observatory, whose work around the globe is key to understanding past changes in the oceans and what is going on today.

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

  • Brief Broadleaf Forest Happenings: tulip goodness, delighted about Turkey, and drought

    Brief Broadleaf Forest Happenings: tulip goodness, delighted about Turkey, and drought

    I have to call myself out. Earlier I had professed to being a former coniferphile. That was, of course, silly. I like coniferous trees very much. Half of my business is made from this lovely branch of the tree family. This introduction is a lead in to say that this blog will be quieter while…

  • Tropical Plankton Invade Arctic Waters

    Researchers See Natural Cycle; But Questions Arise on Climate Change

  • For Tomorrow’s Leaders, a Tool Box for a Complex World

    For Tomorrow’s Leaders, a Tool Box for a Complex World

    How are the global leaders of tomorrow going to secure renewable sources of energy, solve the problems of water scarcity, and maintain our standard of living – all while improving health, ending poverty, and accommodating a growing population and changing environment? The World Economic Forum, with its commitment to “improving the state of the world,”…

  • China Burns up the Clean Energy Race

    China Burns up the Clean Energy Race

    Although China dominates in the race to be the leading global manufacturer of clean renewable energy, they are not necessarily doing the most for the environment. China, consistently pushing the clean energy market towards an economic future, was expected to be a leading developing country in negotiations at Rio+20. Meanwhile, the United States, without a…

  • 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.

  • Pulling CO2 From Air Vital To Curb Global Warming, Say Researchers

    But Lower-Cost Technology a Stumbling Block So Far

  • Shrinking Glaciers: A Chronology of Climate Change

    Shrinking Glaciers: A Chronology of Climate Change

    During the last ice age, glaciers dominated New Zealand’s Southern Alps until warming temperatures some 20,000 years ago sent them into retreat. Scientists at Lamont-Doherty Earth Observatory, with their colleagues, are investigating the rocky remnants these glaciers left behind to learn precisely when the ice withdrew, and what glacier retreats globally can tell us about…

  • Chasing Ghengis Khan

    Chasing Ghengis Khan

    Once you, as an outsider, spend considerable time in Mongolia, especially during Naadam and especially in the open Gobi steppe with people who still live as their ancestors did centuries ago, you will also begin to chase Chinggis Khaan.

  • Investigating the World’s Oceans, Pole to Pole and Deep Below the Bottom

    Investigating the World’s Oceans, Pole to Pole and Deep Below the Bottom

    Watch a slide show featuring ongoing research by scientists at Columbia University’s Lamont-Doherty Earth Observatory, whose work around the globe is key to understanding past changes in the oceans and what is going on today.