Earth Sciences Archives - State of the Planet

How Australia Got Planted

A new study has uncovered when and why the native vegetation that today dominates much of Australia first expanded across the continent.

by |May 21, 2018

Photo Essay: How High Could Seas Rise?

Columbia scientists recently visited the Caribbean island of Barbados, whose fossilized coral reefs contain an exquisite record of how the ocean has risen and fallen in the past.

by |May 14, 2018

How High Can Seas Rise? On a Tropical Isle, the Answers Are Not Always Obvious.

To help predict the future of sea level rise, scientists are studying ancient corals on the island of Barbados.

by |May 14, 2018

In Ancient Rocks, Scientists See a Climate Cycle Working Across Deep Time

A gradual shift in Earth’s orbit that repeats every 405,000 years plays a role in natural climate swings.

by |May 7, 2018
rendering of snowball earth

Was the Earth Ever Frozen Solid?

Hundreds of millions of years ago, the planet was trapped in a global ice age. But exactly how icy things got is still up for debate.

by |May 4, 2018

Laia Andreu-Hayles Explores Tropical Forests in a Warming World

Research by tree-ring scientist Laia Andreu-Hayles will provide much-needed observational climate data for Bolivia and Peru and insight into the climate sensitivity of tropical tree species in the Andes.

by |May 2, 2018

To Save Coastal Property from Rising Seas, We Need Collaborative Planning

Climate scientist Radley Horton is bringing the effects of sea level rise to decision-makers, and fostering discussions to help society confront climate change.

by |May 1, 2018
traversing the thwaites glacier

U.S., UK Scientists Join to Study Possible Collapse of Massive Antarctic Glacier

An international collaboration will study the wasting of the Thwaites glacier, which already accounts for around 4 percent of current global sea-level rise, and could collapse within decades or centuries.

by |April 30, 2018
greenland

Exposing Greenland’s Green Past

Findings from last year indicate that the Greenland Ice Sheet is perhaps not as stable as scientists had hoped.

by |April 26, 2018
simon mason accepts award

Simon Mason Wins Meteorological Award for Outstanding Service

The World Meteorological Organization’s Commission on Climatology recognizes a Columbia climate forecaster’s scientific contributions.

by |April 25, 2018