State of the Planet

News from the Columbia Climate School

Ecology27

  • Photo Essay: When People Must Make Way for Nature

    Photo Essay: When People Must Make Way for Nature

    The forested Kanha Tiger Reserve, in the highlands of central India, is home to an abundance of rare wildlife. It also used to be home to thousands of people—that is, until they were moved out by the government to make way for endangered creatures.

  • Eavesdropping on the Ocean’s Mighty Microorganisms

    Eavesdropping on the Ocean’s Mighty Microorganisms

    Now, nearing the end of our three-week cruise of the North Pacific off Hawaii, we are working to understand how these tiny bacteria connect and communicate with one another.

  • Setting Off to Explore the Depths

    Setting Off to Explore the Depths

    Yesterday, we set sail at 8am, rounded the Island of O’ahu, and headed north into the blue waters of the North Pacific Subtropical Gyre.

  • Pratigya Polissar Sees Landscapes Changing Through a Microscope

    Pratigya Polissar Sees Landscapes Changing Through a Microscope

    The word fossils typically conjures images of T-Rexes and trilobites. Pratigya Polissar thinks micro: A paleoclimatologist, he digs into old sediments and studies molecular fossils—the microscopic remains of plants and animals that can tell us a lot about what was living in a particular time period.

  • Can State Environmental Agencies Fill in for a Failing EPA?

    Can State Environmental Agencies Fill in for a Failing EPA?

    There are places where EPA will fail the American people. But while state and local governments cannot perform all the functions that a national environmental agency can, visible local environmental and health impacts will lead mayors and governors to act.

  • Student Writing Project Exposes NYC’s Illegal Ivory Trade

    Student Writing Project Exposes NYC’s Illegal Ivory Trade

    For a term project, Wendy Hapgood, MSSM ’16, investigated the possible illegal sale of ivory at shops in Manhattan. She found evidence for the largest ivory bust in New York state history.

  • Grasslands More Sensitive to Dryness than Rainfall, Study Says

    Grasslands More Sensitive to Dryness than Rainfall, Study Says

    A new study shows that dryness of the atmosphere affects U.S. grassland productivity more than rainfall does. The findings could have important implications for predicting how plants will respond to warming climate conditions.

  • How Climate Change Affects New York’s Plants and Animals

    How Climate Change Affects New York’s Plants and Animals

    Climate change is already affecting New York, and these changes will have profound effects on its ecosystems, plants and animals. What are the implications of these projected changes?

  • Study Finds Oil Palm Certification Plays Limited Role in Curbing Fires

    Study Finds Oil Palm Certification Plays Limited Role in Curbing Fires

    Oil palm is in everything from food to cosmetics to fuel and is consumed and used by most people without giving it a second thought. Yet oil palm cultivation is a large contributor to environmental and social problems, especially in places like Indonesia, where the business of oil palm cultivation has become the second largest…

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

  • Photo Essay: When People Must Make Way for Nature

    Photo Essay: When People Must Make Way for Nature

    The forested Kanha Tiger Reserve, in the highlands of central India, is home to an abundance of rare wildlife. It also used to be home to thousands of people—that is, until they were moved out by the government to make way for endangered creatures.

  • Eavesdropping on the Ocean’s Mighty Microorganisms

    Eavesdropping on the Ocean’s Mighty Microorganisms

    Now, nearing the end of our three-week cruise of the North Pacific off Hawaii, we are working to understand how these tiny bacteria connect and communicate with one another.

  • Setting Off to Explore the Depths

    Setting Off to Explore the Depths

    Yesterday, we set sail at 8am, rounded the Island of O’ahu, and headed north into the blue waters of the North Pacific Subtropical Gyre.

  • Pratigya Polissar Sees Landscapes Changing Through a Microscope

    Pratigya Polissar Sees Landscapes Changing Through a Microscope

    The word fossils typically conjures images of T-Rexes and trilobites. Pratigya Polissar thinks micro: A paleoclimatologist, he digs into old sediments and studies molecular fossils—the microscopic remains of plants and animals that can tell us a lot about what was living in a particular time period.

  • Can State Environmental Agencies Fill in for a Failing EPA?

    Can State Environmental Agencies Fill in for a Failing EPA?

    There are places where EPA will fail the American people. But while state and local governments cannot perform all the functions that a national environmental agency can, visible local environmental and health impacts will lead mayors and governors to act.

  • Student Writing Project Exposes NYC’s Illegal Ivory Trade

    Student Writing Project Exposes NYC’s Illegal Ivory Trade

    For a term project, Wendy Hapgood, MSSM ’16, investigated the possible illegal sale of ivory at shops in Manhattan. She found evidence for the largest ivory bust in New York state history.

  • Grasslands More Sensitive to Dryness than Rainfall, Study Says

    Grasslands More Sensitive to Dryness than Rainfall, Study Says

    A new study shows that dryness of the atmosphere affects U.S. grassland productivity more than rainfall does. The findings could have important implications for predicting how plants will respond to warming climate conditions.

  • How Climate Change Affects New York’s Plants and Animals

    How Climate Change Affects New York’s Plants and Animals

    Climate change is already affecting New York, and these changes will have profound effects on its ecosystems, plants and animals. What are the implications of these projected changes?

  • Study Finds Oil Palm Certification Plays Limited Role in Curbing Fires

    Study Finds Oil Palm Certification Plays Limited Role in Curbing Fires

    Oil palm is in everything from food to cosmetics to fuel and is consumed and used by most people without giving it a second thought. Yet oil palm cultivation is a large contributor to environmental and social problems, especially in places like Indonesia, where the business of oil palm cultivation has become the second largest…