Alex Halliday Archives - State of the Planet

COP27

What Did COP27 Accomplish?

Delegates from Columbia Climate School discuss the achievements and shortfalls of COP27, as well as what took place outside the negotiation room.

by Emily Halnon |November 22, 2022

Columbia Climate School Celebrates Its First Class Day

The inaugural class of Climate School students have finished their courses and donned their light blue caps and robes for the ceremony.

by |May 13, 2022
headshots of four people

Announcing the Leadership of the Columbia Climate School

The Columbia Climate School will be co-led by four of Columbia’s most eminent climate experts: Alex Halliday, Jason Bordoff, Ruth DeFries, and Maureen Raymo.

by Lee Bollinger |April 19, 2021
alma mater in front of Low Library

Why Do We Need a Climate School?

Climate change is already part of the curricula across Columbia, but we can make a bigger difference by working together.

by |July 13, 2020

Earth Institute Director Alex Halliday Honored with Knighthood

Years before Alex Halliday joined Columbia University’s Earth Institute as its director, he was changing the field of geochemistry.

by |May 9, 2019