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World-university-rankings

Number One Engineering and Technology University

10-04-12

For the third year the Times Higher Education world university rankings has ranked Caltech as number one in engineering and technology. [View Rankings] [Caltech Feature]

Tags: CMS APhMS EE GALCIT MCE ESE Graduate school rankings

Michael-hoffmann

Self-Contained, Photovoltaic Powered Domestic Toilet

08-15-12

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

Agustin-colussi

New Insight into Acid Rain Chemistry

06-13-12

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

Jess-adkins

Using Stalagmites to Study Past Climate Change

05-04-12

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]

Tags: Jess F. Adkins ESE research highlights

John-seinfeld

Professor Seinfeld Wins 2012 Tyler Prize for Environmental Achievement

03-21-12

John H. Seinfeld, Louis E. Nohl Professor and Professor of Chemical Engineering, and past Engineering and Applied Science Division Chair has recieved the Tyler Prize for Environmental Achievement, an honor regarded as the top prize of environmental science, environmental health, and energy. He has won the prize for "his groundbreaking work leading to the understanding of the origin, chemistry, and evolution of particles in the atmosphere." [Caltech Feature

Tags: John H. Seinfeld ESE honors

Tapio-schneider

New Computer Model Explains Lakes and Storms on Titan

01-05-12

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]

Tags: Tapio Schneider ESE research highlights

World-university-rankings

Number One Engineering and Technology University

10-14-11

For the second year the Times Higher Education world university rankings has ranked Caltech as number one in the subject of  engineering and technology. [View Rankings] [Caltech Feature]

Andrew-thompson

Andrew Thompson Joins ESE Faculty

08-29-11

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]

Tags: Andrew Thompson ESE research highlights

1240-mike-hoffmann

Solar-Powered Sanitation System

07-19-11

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: Michael Hoffmann ESE health research highlights

Medium-generic

Linde Center's New Home Makes Headlines for Extraordinary Renovations

07-12-11

The Ronald and Maxine Linde Center for Global Environmental Science's new home, the Linde + Robinson Laboratory, will be the nation's first LEED Platinum laboratory and is profiled in Solutions Journal, a magazine of the Rocky Mountain Institute. The center is directed by Tapio Schneider, Frank J. Gilloon Professor of Environmental Science and Engineering, and brings together faculty from different Caltech Divisions who study climate change.  [Caltech Feature] [Magazine Article]

Tags: Tapio Schneider Linde Center ESE

Environmental Science and Engineering