climate change


Rising Temperatures Load the Dice for Megadrought Risk

As the American Southwest grows hotter, the risk of severe, long-lasting megadroughts rises, passing 90 percent this century if greenhouse gas emissions continue at their current pace, a new study from scientists at Lamont-Doherty Earth Observatory says. Aggressively reducing emissions can cut that risk.

by |October 5, 2016

Mapping Risks and Building Resilience, from Plot to Plate

Michael Puma, an associate research scientist at the NASA Goddard Institute for Space Studies and a Center for Climate and Life Fellow, works to improve understanding of the fragility of the global food system and how it might respond to major disruptions.

by |October 5, 2016
Sea  ice near the east coast of Greenland. All forms of ice in the Arctic are in rapid decline. (Margie Turrin/Lamont-Doherty Earth Observatory)

Red Flags Over the Arctic’s Future

A new white paper reviews climate impacts already underway in the Arctic, and examines further changes expected to take place even if the world meets the goals of the Paris Agreement. It will be presented today at a meeting at the White House of national-level science ministers and advisors from around the world.

by |September 28, 2016
Heat wave over Queens. Photo: Chris Goldberg

NYC’s Heat Waves: A Harbinger of Things to Come?

As global temperatures rise and heat records are broken, many wonder if New York City’s heat waves this summer were a result of climate change, and if we will experience more of them in the future.

by |September 27, 2016
Due to global warming the polar bear's habitat has changed drastically. Photo: Gerard Van der Leun

Climate Week: Why Does It Matter?

Climate Week NYC 2016, Sept. 19 to 35, features over 70 events bringing together business, societal and government leaders to share ideas, technologies, resources and success stories that are helping to curb climate change and transition to a low-carbon society.

by |September 15, 2016
Participants in Students on Ice listen to scientist Maureen Raymo (top left) discuss climate change at the foot of Greenland’s Illissaat Icefjord. (Image: Martin Lipman/Students on Ice)

Facing Rapid Change in the Arctic

An expedition to the Canadian Arctic and west coast of Greenland is a moving and motivating experience for Lamont-Doherty Earth Observatory climate scientist Maureen Raymo.

by |September 15, 2016
wind farm at dusk

New Gift Will Bolster Sustainability Research Efforts in China

As part of a generous $2 million donation to Columbia University, the Earth Institute’s Research Program on Sustainability Policy and Management will receive $700,000 to expand its research efforts on sustainability in China.

by |September 8, 2016
Recent winters have had extreme temperature differences in the U.S., with the East facing bitter cold spells and the West exceptionally warm and dry. Photo: Anthony Quintano/CC-BY-2.0

Extreme-Weather Winters Becoming More Common in U.S., Study Shows

This past July was Earth’s hottest month since record keeping began, but warming isn’t the only danger climate change holds in store. Recent years have seen a dramatic increase in the simultaneous occurrence of extremely cold winter days in the Eastern United States and extremely warm winter days in the Western U.S., according to a new study.

by |September 1, 2016
A man wades through a flooded Cornwall street after severe winter storms hit the United Kingdom. (Image: Pixabay)

How Does the Ocean Drive Weather and Climate Extremes?

Lamont-Doherty Earth Observatory scientists Ryan Abernathey and Richard Seager are investigating how processes in the ocean create extreme weather and climate conditions over land.

by |August 30, 2016
The 2003 Simi Valley Fire ravages a mountainside in Southern California's Simi Valley. Image: U.S. Air Force/Senior Master Sgt. Dennis W. Goff

Drought and Fire Activity: What’s Climate Change Got to Do with It?

Lamont-Doherty Earth Observatory scientist Park Williams, recipient of a Center for Climate and Life Fellowship, is investigating the influence of climate change on droughts and wildfires.

by |August 18, 2016