Morningside Campus Status Updates

Current Access Level “I” – ID Only: CUID holders, alumni, and approved guests only

  • Campus open to active affiliate Columbia University ID (CUID) holders and approved guests only.
  • Columbia students, faculty, and staff can use the guest registration portal to register up to two same-day guests. Alumni can use the portal to register for campus same-day access as well. Learn more below.

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Climate Change

Fahrenheit Pledge

Op-eds & Essays by David Sandalow • December 07, 2015

In the next week, with the Paris climate conference underway, millions of Americans will hear and read news stories about global warming. They’ll hear that allowing global average temperatures to increase by more than 2°C would be dangerous, that nations of the world have pledged to keep warming below 2°C and that, in the absence of policies, global average temperatures are likely to increase by a shocking 4°C by the end of the century. There’s only one problem: Americans think in degrees Fahrenheit. 

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Relevant
Publications

International Dialogue on Climate and Trade: Preliminary Report

In the fall of 2024, the Center on Global Energy Policy (CGEP) at Columbia University SIPA launched the International Dialogue on Climate and Trade to afford governments and stakeholders opportunities to seek common ground on ways of more effectively and equitably managing issues at the intersection of climate and trade.

Summaries by Elliot Diringer, Victoria Barreto Vieira do Prado & Trevor Sutton • October 21, 2025
International Dialogue on Climate and Trade: Preliminary Report
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Climate Change

Fahrenheit Pledge

Op-eds & Essays by David Sandalow • December 07, 2015