News & Events


Professor Bordoni Receives Young Investigator Award in Environmental Sciences


Simona Bordoni, Assistant Professor of Environmental Science and Engineering, has received a Young Investigator Award in Environmental Sciences from the Italian Scientists and Scholars in North America Foundation (ISSNAF). The award is given to early stage investigators working in North America whose commitment to their discipline of study is innovative, impactful, and honors their country of origin. Professor Bordoni received the award for her research in fundamental monsoon dynamics, specifically aquaplanet monsoons and their response to climate changes. She has also received a medal from the President of the Italian Republic, "Medaglia di Rappresentanza del Presidente della Repubblica Italiana." [Research abstract]

Tags: honors research highlights ESE Simona Bordoni

Professor Seinfeld Elected to the National Academy of Sciences


Professor John H. Seinfeld has been elected to the National Academy of Sciences in recognition of his distinguished and continuing achievements in original research. His research has revealed the role of organic species in aerosols and the process by which vapor molecules become incorporated into particles. Currently his work focuses on the effects of aerosols on cloud formation and Earth's climate. [Caltech Release]

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EAS Division Welcomes New Deputy Chair


Peter Schröder, Professor of Computer Science and Applied and Computational Mathematics, is the new Deputy Chair of the Division of Engineering and Applied Science. "I look forward to working with Peter over the next several years as we continue with our quest to remain a unique collaborative community of isolated singularities that sets a compelling model as a research and teaching institution," says Chair Ares Rosakis.

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Clean-Energy Research Accelerates


Caltech clean-energy research is accelerating thanks to the renovation of the Earle M. Jorgensen Laboratory. Transformed into a cutting-edge facility for energy science, the lab unites two powerhouse programs: the Resnick Sustainability Institute and the Joint Center for Artificial Photosynthesis (JCAP). "Our researchers are working with Caltech's chemists and chemical engineers to challenge the status quo and translate scientific discovery into clean-energy innovations that will directly benefit society for generations to come," says Chair Ares Rosakis. [Caltech Release]

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Self-Contained, Photovoltaic Powered Domestic Toilet


Michael Robert Hoffmann, James Irvine Professor of Environmental Science, and his team of graduate students Asghar Aryanfar, Clement Cid, Kangwoo Cho, Daejung Kwon, and Hao Zhang, along with post doctoral scholar Yan Qu have won the Reinventing the Toilet Challenge issued by the Bill and Melinda Gates Foundation. Their winning proposal was to build a toilet that uses the sun to power an electrochemical reactor. The reactor breaks down water and human waste into fertilizer and hydrogen, which can be stored in hydrogen fuel cells as energy. The treated water can then be reused to flush the toilet or for irrigation. [Caltech Feature] [CNN Ideas]

Tags: energy research highlights MCE ESE Michael Hoffmann Asghar Aryanfar Clement Cid Kangwoo Cho Daejung Kwon Hao Zhang Yan Qu

New Insight into Acid Rain Chemistry


A multidisciplinary team led by Dr. A. J. Colussi, comprising of graduate student Himanshu Mishra, and Professor Michael Hoffmann along with Dr. Robert J. Nielsen and Professor William A. Goddard III from the Materials and Process Simulation Center, has shown that the dissociation of nitric acid on thin layers of water, such as those in contact with air or biological membranes, is dramatically different from the similar process inside water. They have found that the molecules of nitric acid do not dissociate when they collide with water unless its surface contains at least 1 anion per million water. This work explains how minute concentrations of anions might subtly participate in acid rain chemistry, the cycling of nitrogen oxide pollutants on urban haze, and in the charging of protein surfaces that drive enzyme activities. [The PNAS Article]

Tags: research highlights ESE William Goddard Michael Hoffmann A. J. Colussi Himanshu Mishra Robert Nielsen

Using Stalagmites to Study Past Climate Change


By analyzing stalagmites, Jess F. Adkins, Professor of Geochemistry and Global Environmental Science, and colleagues have determined that the climate signature in the tropics through four glacial cycles looks different in some ways and similar in others when compared to the climate signature at high latitudes. The results suggest that Earth's climate system might have two modes of responding to significant changes. [Caltech Press Release]

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New Computer Model Explains Lakes and Storms on Titan


A new computer model of the atmosphere and methane cycle of Titan, Saturn's largest moon, explains baffling observations of its lakes and storms. "We have a unified explanation for many of the observed features," says Tapio Schneider, the Frank J. Gilloon Professor of Environmental Science and Engineering. "It doesn't require cryovolcanoes or anything esoteric." [Caltech Press Release]

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Andrew Thompson Joins ESE Faculty


Andrew Thompson, Assistant Professor of Environmental Science and Engineering, joined the Caltech Division of Geological and Planetary Sciences in August 2011. His research focuses on eddies in the ocean which are important for mixing the ocean and transporting heat, chemicals, and biological elements. [Caltech Press Release]

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Solar-Powered Sanitation System


Michael R Hoffmann, James Irvine Professor of Environmental Science, has received a $400,000 grant from the Bill & Melinda Gates Foundation to build a solar-powered portable toilet that could help solve a major health problem in developing countries. [Caltech Press Release]

Tags: research highlights health ESE Michael Hoffmann