drought Archives - Page 3 of 8 - State of the Planet

Attributing Extreme Weather to Causes—Including Climate Change

New research and more powerful computer models are advancing scientists’ ability to tease apart the forces that can worsen extreme weather. In a new report, a committee of the National Academy of Sciences that includes Columbia’s Adam Sobel assesses the young field of attribution studies.

Syria’s Drought Likely Its Most Severe in More than 900 Years

“If climate change is having an impact and is making droughts worse, then we should see this in the record over several centuries—and we do,” said the study’s author, Benjamin Cook.

by |March 1, 2016

What Does El Niño Mean, in 3.4 Seconds

Scientists at the International Research Institute for Climate and Society took a moment from their work (a very brief moment) to answer the question, “What does El Niño mean?”

by |January 15, 2016

Honduran Farmers Help Design Insurance Against Climate Risks

The International Research Institute for Climate and Society and local Honduran partners have been working to identify and implement farmer-driven, development-focused climate risk solutions. Through interactive exercises, grain farmers have worked together with the team of experts since 2014 to design and tailor index insurance in the pilot region of El Paraíso, Honduras. This video tells the story.

by |December 21, 2015

The Changing Climate of Security

In the November Democratic presidential primary debate, Sen. Bernie Sanders said that the greatest threat to national security was climate change. But is there actually a link between national security and climate change, and if so, what is it?

by |December 9, 2015
Lake Elsinore, where changing pollen levels in the sediment indicate a series of mega droughts gripped the region thousands of years ago. Photo by Jim Sneddon/CC-BY-2.0

Ancient Pollen Points to Mega-Droughts in California Thousands of Years Ago

Ancient pollen spores that were in the air when mammoths roamed Southern California are providing new insights into historic droughts in the region, including how a series of mega droughts 25,500 to 27,500 years ago changed the ecological landscape.

by |September 22, 2015
Tree ring research was a young field in 1975 when Ed Cook (above, in Nepal) and Gordon Jacoby founded the Tree Ring Lab at Lamont. The Lab would become a world leader in tree ring sampling and analysis and a source of technology and training for dendrochronologists around the world. Photo by Paul Krusic

Translating Nature’s Historians: The Tree Ring Lab Turns 40

In its first 40 years, the Lamont Tree Ring Lab tracked changing climates around the world, building an international reputation as a global leader in research, training and technology.

by |September 16, 2015
Fog in the Amazon River Basin. Dallas Krentzler/CC-BY-2.0

Seeing the Amazon’s Future Through the Fog

Scientists have developed a new approach to modeling the water and carbon cycles in the Amazon that could lead to better climate forecasts and improved water resource management.

by |August 31, 2015

How Climate Influences Wolf Recovery in California

Some evidence suggests that the glaciers on Mt. Shasta might have something to do with the location of a newly-spotted wolf pack in northern California.

by |August 26, 2015

The Growing Groundwater Crisis

Groundwater is being depleted at alarming rates, not only in drought-stricken California, but around the world. When groundwater is depleted, it can take tens to hundreds of years to for it to reestablish its sustainable level, if at all. What can be done to avert a water crisis?

by |August 3, 2015