Global Warming


The Paris Climate Summit: Resources for Journalists

Many experts at Columbia University’s Earth Institute are attending or closely watching the Paris climate summit. These include world authorities on climate science, politics, law, natural resources, national security, health and other fields, who can offer expert analysis to journalists. Here’s a guide to resources that journalists covering the summit can tap.

by |November 13, 2015
logo-cop-21-carr-feature image size

From Copenhagen to Paris: Getting Beyond Talk

The climate issue seems to generate a high level of ideologically based politics, emotional rhetoric and political symbolism. It is time to move past symbols to pragmatism and political reality.

by |November 12, 2015
The difference in average surface temperatures from 1970-79 (bottom) to 2000-09 (top) due to global warming. Photo: NASA

The Paris Climate Change Conference – What You Need to Know

The United Nations Climate Change Conference, meeting in Paris from Nov. 30 to Dec. 11, brings together world leaders to craft a new international agreement to keep the average global temperature rise below 2°C by 2100. Here’s what you need to know about it.

by |November 11, 2015

The Presidential Candidates on Climate Change

The presidential election of 2016 will determine the United States’ role in confronting the global challenge of climate change, and preparing our nation to manage its impacts for years to come. Where do the presidential candidates stand today on these issues?

by |October 26, 2015
Ming paper fig 1 crop

What the World Thinks of Climate Change

We all know that climate change can generate great debate in the United States. But what about the rest of the world?

by |July 27, 2015

The Pope’s Challenge on Climate Change

Pope Francis’s broad-ranging encyclical warns that we are destroying our common home and face an immense and urgent challenge to protect it. But it goes far beyond just the subject of climate change, calling for a holistic and sustainable future.

The global ocean buoy network has been expanding in recent years. Accounting for small, consistent offsets between temperatures measured by buoys and by ships reveals a greater global warming trend than previously calculated for the past 15 years. Image: Maintenance workers on an ocean buoy, NOAA.

‘Faux pause’

New data support the conclusion
The “hiatus” was mostly illusion…

by |June 12, 2015
Increases in westward-blowing winds over the Pacific Ocean are thought to be pushing great masses of water--and heat--through the Indonesian straits, into the Indian Ocean.

Global Warming’s ‘Missing’ Heat: It May Be in the Indian Ocean

Since the late 1990s, global warming has stabilized, even as greenhouse gases have risen. That defies simple models that say the temperature should keep going up. A team of oceanographers now says they know where the missing heat has gone.

by |May 20, 2015
Amazon River Delta Courtesy NASA, Johnson Space Center

A Climate Battle Cry for Earth Day

A group of 17 renowned scientists from around the world are appealing for dramatic action to forestall the worst effects of climate change, issuing an “Earth Statement” that calls for a world powered with zero carbon emissions by mid-century.

by |April 22, 2015
NPCC's updated flood risk map

Report Forecasts Worsening Climate Hazards for Region

A new report gives a worrisome picture of climate-related problems the New York region will likely face this century. Temperatures are projected to rise, extreme precipitation and heat waves will be more frequent, and sea level could rise as much as 6 feet.

by |February 17, 2015