The International Institute of
the Bengal and Himalayan Basins

P.O. Box 11553
Berkeley, CA 94712
Tel: 510-870-4988


Rash B. Ghosh, PhD

Charles Townes Prof. of Water Chemistry
Inventor of Hydrogramin
Civil Rights Activist


The founder of IIBHB earned his PhD from the University of Salford, Manchester in the United Kingdom, studying the hydrodynamics and ecology of the polluted Mersey River estuary and the Liverpool Bay. After this, he returned to the Bengal Basin in Bangladesh and India and assessed the causes of increased levels of arsenic and other toxics in the drinking water resources. Dr. Ghosh has had the opportunity to work with and learn from scholars on three continents on projects and studies concerning the Bengal, Liverpool/Manchester, and San Francisco basins as well as super-fund sites in California and beyond. Dr. Ghosh was a university lecturer at Salford under water science and technology, was a scientist at Stanford University conducting research on canopy chemistry, interactions of climate, nutrient cycling, and global warming for NASA. He was also a scientist at the California Department of Health Services and the California Environmental Protection Agency and worked groundwater mitigation, super-fund toxic waste sites, and risk assessment, health, and safety. Dr. Ghosh now develops meaningful solutions such as Hydrogramin which injects freshwater to replenish depleted aquifers uniformly across the planet which prevents further land subsidence. Hydrogramin has been developed by Dr. Ghosh for over 35 years with the assistance of many professional,interdisciplinary, and world-class scientists of the Bengal and Himalayan Basins of India, Europe, and California – which includes Charles H. Townes, the father of the laser and Nobel Laureate Glenn T. Seaborg(both co-founders of IIBHB). Dr. Ghosh is a former Asst. Professor at Dhaka Jagannath University and became Charles Townes Professor in 2007 and was confirmed in 2008.


Rosalie Say
Chief Financial Officer

A long time volunteer of the non-profit, Rosalie has years of combined experience in trade and investment promotion, research, planning and management of development programs and projects working with the Philippine government, regional intergovernmental and non-profit organizations. She earned her Masters in Development Studies from the Institute of Social Studies in the Netherlands.

Melissa Dworkin


Nir Krakauer, PhD

Nir  is an Assistant Professor of civil engineering at the City College of New York. Dr. Krakauer’s research interests include effect of climate on plants; underground water, surface heat, moisture, and carbon exchanges; impact of plants on precipitation and temperature patterns; hydrology and biogeochemistry of sustainable agriculture and building; carbon isotopes as tracers of fossil fuel burning, ocean carbon uptake, and respiration; inferring the effect of past climate on ecology from tree-ring and coral records; providing useful climate forecasts through statistical and physical downscaling; distributed sensor networks for environmental monitoring; and data assimilation in carbon and hydrology models.

Dawn Bravo, PhD
Director, Project Development

Dawn is a Biochemist from Stanford University. Her research has focused on the development of chemical detection tests. She has also developed an inhibitor of respiratory cancers while at UCSF. She is leading a team of researchers investigating stem cell regenerative medicine in respiratory diseases at Stanford University. Dawn is very passionate about current global environmental and climate issues. She joins the organization with a strong commitment to make a difference with her strong research and innovative experience developing and implementing project completion.

Megan Timberlake


Atty. Michael Sims

Tomoko Hattori
Volunteer Coordinator

Tomoko has 26 years of professional experience in health care.  Her specialization includes community health, maternal and child health, public health research, human resource development for health workforce, health policy and project management.  She worked with government and non-government organizations on various health projects in developing countries such as Mexico, Indonesia, Solomon Islands, and Angola. Tomoko earned her Master of Public Health (MPH) major in Global Health from the School of Public Health, Boston University.  She completed her Bachelor of Nursing Science in Japan and is a licensed Registered Nurse (RN) and Public Health Nurse (PHN) in her native country.  Tomoko speaks Japanese, English, Spanish, Indonesian, and Bislama.  

Gevork Gevorkyan

Gevork studied Applied Mathematics and Experimental Physics at the University of California Berkeley. He worked as a researcher at the Lawrence Berkeley National Laboratory in Atomic Physics. Joined the organization as a volunteer in 2014 and continues to support the group on his free time.

Kevin Mahoney

Kevin is a first-year undergraduate civil and environmental engineering student at the University of California, Berkeley. His related interests include environmental justice and the incorporation of sociopolitical, cultural, and demographic factors into engineering work. He is currently working at a wastewater treatment and groundwater testing project in West Oakland under the guidance of the Berkeley Water Center and the Blum Center for Developing Economies and is a research assistant at the Environmental Fluid Mechanics Laboratory and at the University of California, San Francisco. Kevin speaks English, Chinese, and Japanese and is learning German and Korean. In his free time he enjoys rowing, hiking, running, playing horn, and traveling.

Linkedin: <br


Derek Whitworth, PhD

Derek has been with the Institute since its founding.  Originally trained as a biochemist and then a chemical engineer he has worked on engineering projects in different countries in several industries from brewing to forestry.  Derek has had a long varied career examining ways that waste materials can be economically transformed to beneficial uses. This has included using residual brewery yeast as a source of enzymes, wood wastes converted to fuel alcohol, heavily contaminated industrial sites being cleaned up for productive use, and sanitary waste water being cleaned up to irrigate Napa Valley vineyards. His interests now are focused on using plants and other low energy systems to ensure that water is never wasted. Derek earned his PhD from England.


John Paulin, PhD

John earned his doctorate in Interdisciplinary Humanities from UC Berkeley, where he studied Greek Tragedy along with Greek and German Ethics, Aesthetics, and Metaphysics

Jason Ravitz, PhD
Director for Education

Jason Ravitz manages evaluation of education outreach at Google, mostly focusing on increasing participation in computer science education by under-represented minorities and women.  He previously conducted research on educational technologies and pedagogical reform at the Buck Institute for Education, completed post-doctoral positions at SRI International and UC-Irvine, and worked at BBN Educational Technologies.  He has taught at Syracuse University, UC-Irvine, and UC-San Francisco, and lectured widely. He holds a Ph.D./M.S. in Instructional Design, Development and Evaluation from Syracuse University


Sukomal Modak, PhD

Sukomal received his PhD in Structural Engineering from Purdue University in 1997. He is originally from Bengal but has made Northern California his home for the last 22 years. He is one of the lead developers of computer software for structural and earthquake engineering at Computers and Structures, Inc. He has done work in Bangladesh on industrial wastewater treatment.

Ahmed Abdelrahman, PhD

Ahmed is a postdoctoral researcher in the Physics Department at the University of California Berkeley. His research focus is quantum simulations and quantum information processing with magnetically and electrically confined individual particles. At the moment, he works with trapped ions, i.e. electrically confined charged particles, to execute quantum gates and/or algorithms beside simulating solid state structure for investigating interesting physical configurations, such as phase transitions. Ahmed is originally from Sudan. He obtained his Master degree from Europe at KTH University in Sweden and Leipzig University in Germany. He moved to Australia to earn his PhD from Western Australia. Ahmed also traveled across Asia before working in UC Berkeley.

Liam Caffrey

Liam is born in Pasadena, California.  He earned his Bachelor’s degree from Sonoma State University.  Among Liam’s skills include computer skills with some basic C-language programming, advanced novice with debian and derivatives linux.  He has some construction and mechanical skills, as well.  Liam is proud to have caught his first trout in Mono County at age 6. Occasionally gets reminded by day-to-day situations and experiences, of bits and pieces of Tao Te Ching


Kevin Anderson



Dilip Sinha, PhD


Aftab Zaman, PhD


Monica Bardhan


Rupsha Roy



Nirupum Mazumder, PhD


Sukla Das


Igbal Yousuf



Harry Choudhury, M.D.