Active Research Projects

Data: A reconstruction of global hydroclimate and dynamical variables over the Common Era

The Paleo Hydrodynamics Data Assimilation product (PHYDA) is the first global reconstruction of hydroclimate and associated dynamical variables.  It uses a novel data assimilation method and the largest multiproxy database assembled to date by combining several community-complied proxy datasets.  The reconstructions, code, and proxy data were all made public upon publication and are available through the NOAA NCEI data pages and through th

Featured Publication

SADA domain and verifications based on instrumental climate and historical documents

Six hundred years of South American tree rings reveal an increase in severe hydroclimatic events since mid-20th century

M. S. Morales
E. R. Cook
J. Barichivich
D. A. Christie
R. Villalba
C. LeQuesne
A. M. Srur
M. E. Ferrero
A. González-Reyes
F. Couvreux
V. Matskovsky
J. C. Aravena
A. Lara
I. A. Mundo
F. Rojas
M. R. Prieto
J. E. Smerdon
L. O. Bianchi
M. H. Masiokas
R. Urrutia-Jalabert
M. Rodriguez-Catón
A. A. Muñoz
M. Rojas-Badilla
C. Alvarez
L. Lopez
B. H. Luckman
D. Lister
I. Harris
P. D. Jones
A. P. Williams
G. Velazquez
D. Aliste
I. Aguilera-Betti
E. Marcotti
F. Flores
T. Muñoz
E. Cuq
J. A. Boninsegna


July 07, 2020

Tree Rings Show Unprecedented Rise in Extreme Weather in South America

Scientists have filled a gaping hole in the world’s climate records by reconstructing 600 years of soil-moisture swings across southern and central South America. Along with documenting the mechanisms behind natural changes, the new South American Drought Atlas reveals that unprecedented widespread, intense droughts and unusually wet periods have been on the rise since the mid-20th century. It suggests that the increased volatility could be due in part to global warming, along with earlier pollution of the atmosphere by ozone-depleting chemicals.

June 29, 2020

Announcing ‘EI Teach’ for K-12 Educators

Climate change is the defining issue of this century. Students have shown unprecedented levels of civic engagement in climate activism and understand that they will inherit a world that has felt the impact of climate change. Educators must be prepared to bring climate change into the classroom, and the Earth Institute is excited to support these efforts through our professional development event for K-12 educators, “E.I. Teach: Climate Change in the Classroom” from July 28-31.

June 08, 2020

‘Megadrought’ and ‘Aridification’ — Understanding the New Language of a Warming World

After nearly two decades of declining water flows into the Colorado River Basin, scientists have decided the word drought doesn’t cut it anymore. We need different terms, they say, to help people fully grasp what has happened and the long-term implications of climate change — not just in the Southwest, but across the country.

The term that’s caught the most attention lately is “megadrought.”  Read More