School of Earth, Energy and Environmental Sciences
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Ph.D. Student in Environment and Resources
Current Research and Scholarly InterestsJosheena is a third year doctoral student supporting marine governance in small island states who are facing current impacts of climate change. Her research is situated at the nexus of political ecology and marine policy and focuses on adaptive management of marine protected areas, community inclusion, and the valorization of natural and cultural heritage in marine resource management.
Ph.D. Student in Environmental Earth System Science
Current Research and Scholarly InterestsGeneral research interests: How environmental chemistry influences soil and sediment microbial community dynamics and carbon cycling. Microbial activity plays a large role in carbon storage, greenhouse gas release, and the transport of toxic metals. However, microbial processes differ vastly depending on local environmental conditions. I study how the availability of substrates microbes use to generate energy affects microbial ecology and the processes and rates controlling carbon cycling.
William Wrigley Professor, Senior Fellow at the Woods Institute for the Environment and at the Freeman Spogli Institute for International Studies and Professor, by courtesy, of Economics
Current Research and Scholarly InterestsResearch Activities:
My research focuses on the environmental and equity dimensions of intensive food production systems, and the food security dimensions of low-input systems. I have been involved in a number of field-level research projects around the world and have published widely on issues related to climate impacts on agriculture, distributed irrigation systems for diversified cropping, nutrient use and loss in agriculture, biotechnology, aquaculture and livestock production, biofuels development, food price volatility, and food policy analysis.
I teach courses on the world food economy, food and security, aquaculture science and policy, human society and environmental change, and food-water-health linkages. These courses are offered to graduate and undergraduate students through the departments of Earth System Science, Economics, History, and International Relations.
William Wrigley Professor of Earth Science (2015 - Present); Professor in Earth System Science (2009-present); Director, Stanford Center on Food Security and the Environment (2005-2018); Associate Professor of Economics by courtesy (2000-present); William Wrigley Senior Fellow, Freeman Spogli Institute for International Studies and the Woods Institute for the Environment (2007-2015); Trustee, The Nature Conservancy CA program (2012-present); Member of the Scientific Advisory Board for the Beijer Institute for Ecological Economics in Stockholm (2011-present), for the Aspen Global Change Institute (2011-present), and for the Aldo Leopold Leadership Program (2012-present); Aldo Leopold Leadership Fellow in Environmental Science and Public Policy (1999); Pew Fellow in Conservation and the Environment (1994). Associate Editor for the Journal on Food Security (2012-present). Editorial board member for Aquaculture-Environment Interactions (2009-present) and Global Food Security (2012-present).
Program and Outreach Coordinator, ChangeX
Current Role at StanfordProgram and Outreach Coordinator
Change Leadership for Sustainability
School of Earth, Energy, and Environmental Sciences
Deputy Director, Earth Systems Program, Earth Systems Program
Current Research and Scholarly InterestsI study drivers of past climate change on millennial to million-year timescales using natural archives that preserve records of climate-related information. My most recent work has focused on the impacts of prehistoric human activities on the Earth's carbon cycle and the impacts of these activities on atmospheric greenhouse gas concentrations.