State of the Planet

News from the Columbia Climate School

Lamont-Doherty Earth Observatory128

  • Almost Home, with Another 7 Million Years of Climate History

    Almost Home, with Another 7 Million Years of Climate History

    Science at sea isn’t easy, but the benefits are huge, writes Sidney Hemming in her final post from a two-month expedition that collected millions of years of climate history in the deep-sea sediment from off southern Africa.

  • Scientists Say Many Plants Don’t Respond to Warming as Thought

    From Tundra to New York Exurbs and Tropics, New Data Lowers Estimates of Carbon Release

  • Finding Microfossils off Southern Africa

    Finding Microfossils off Southern Africa

    Expedition 361’s newest sediment cores brought up spectacular foraminifera—translucent, glassy and “very pretty” throughout the ocean sediment.

  • A Surprise from the Zambezi River

    A Surprise from the Zambezi River

    Sidney Hemming and her team aboard the JOIDES Resolution got a surprise when they began taking sediment cores from their first river site off southern Africa—about 10 times more sediment than expected.

  • Photo Essay: High in the Hills, Climate May Challenge Forests

    Photo Essay: High in the Hills, Climate May Challenge Forests

    Forests in the south-central United States are some of the country’s most productive and diverse. They also sit in a warming “hole”—an area where the progressive rise in temperature affecting most of the continent hasn’t yet taken hold. A team from Columbia University’s Lamont-Doherty Earth Observatory is studying how these forests might shift—or even disappear—when…

  • How Will Shifting Climate Change U.S. Forests?

    How Will Shifting Climate Change U.S. Forests?

    One foggy spring morning just after a hard rain, Park Williams was tromping through the woods deep in Arkansas’ Ozark Mountains. Toiling down a steep slope, he supposedly was keeping a simultaneous eye out for rattlesnakes, copperheads, poison ivy and big old trees. Williams seemed mostly focused on the trees, though; attention to the other…

  • Mozambique Core Brings Up 7 Million Years of Climate History

    Mozambique Core Brings Up 7 Million Years of Climate History

    With calm seas, the JOIDES Resolution’s latest sediment core comes up with what appears to be a fantastic, cyclic climate signal that is continuous back 7 million years, writes Sidney Hemming.

  • Pump Meltwater Back on Antarctica? Do You Have 850,000 Wind Turbines?

    Pump Meltwater Back on Antarctica? Do You Have 850,000 Wind Turbines?

    A new study that looked at the feasibility of lowering sea levels by pumping water onto icy Antarctica offers a warning about the costs today’s greenhouse gas emissions may be creating for future generations.

  • Scientists Prepare ‘Climate City’ for Take-Off

    Scientists Prepare ‘Climate City’ for Take-Off

    Sometime soon, a flock of “Climate Birds” could be ascending from a former NATO base in northeast France to take the measure of climate change around the world.

Banner with images representing environmental issues and text "You Asked: Our Scientists and Experts Answer Your Burning Questions."

You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!

  • Almost Home, with Another 7 Million Years of Climate History

    Almost Home, with Another 7 Million Years of Climate History

    Science at sea isn’t easy, but the benefits are huge, writes Sidney Hemming in her final post from a two-month expedition that collected millions of years of climate history in the deep-sea sediment from off southern Africa.

  • Scientists Say Many Plants Don’t Respond to Warming as Thought

    From Tundra to New York Exurbs and Tropics, New Data Lowers Estimates of Carbon Release

  • Finding Microfossils off Southern Africa

    Finding Microfossils off Southern Africa

    Expedition 361’s newest sediment cores brought up spectacular foraminifera—translucent, glassy and “very pretty” throughout the ocean sediment.

  • A Surprise from the Zambezi River

    A Surprise from the Zambezi River

    Sidney Hemming and her team aboard the JOIDES Resolution got a surprise when they began taking sediment cores from their first river site off southern Africa—about 10 times more sediment than expected.

  • Photo Essay: High in the Hills, Climate May Challenge Forests

    Photo Essay: High in the Hills, Climate May Challenge Forests

    Forests in the south-central United States are some of the country’s most productive and diverse. They also sit in a warming “hole”—an area where the progressive rise in temperature affecting most of the continent hasn’t yet taken hold. A team from Columbia University’s Lamont-Doherty Earth Observatory is studying how these forests might shift—or even disappear—when…

  • How Will Shifting Climate Change U.S. Forests?

    How Will Shifting Climate Change U.S. Forests?

    One foggy spring morning just after a hard rain, Park Williams was tromping through the woods deep in Arkansas’ Ozark Mountains. Toiling down a steep slope, he supposedly was keeping a simultaneous eye out for rattlesnakes, copperheads, poison ivy and big old trees. Williams seemed mostly focused on the trees, though; attention to the other…

  • Mozambique Core Brings Up 7 Million Years of Climate History

    Mozambique Core Brings Up 7 Million Years of Climate History

    With calm seas, the JOIDES Resolution’s latest sediment core comes up with what appears to be a fantastic, cyclic climate signal that is continuous back 7 million years, writes Sidney Hemming.

  • Pump Meltwater Back on Antarctica? Do You Have 850,000 Wind Turbines?

    Pump Meltwater Back on Antarctica? Do You Have 850,000 Wind Turbines?

    A new study that looked at the feasibility of lowering sea levels by pumping water onto icy Antarctica offers a warning about the costs today’s greenhouse gas emissions may be creating for future generations.

  • Scientists Prepare ‘Climate City’ for Take-Off

    Scientists Prepare ‘Climate City’ for Take-Off

    Sometime soon, a flock of “Climate Birds” could be ascending from a former NATO base in northeast France to take the measure of climate change around the world.