NSF-IGERT
Cross-Scale Biogeochemistry and Climate (CSBC)

Cornell University

Cary Institute of Ecosystem Studies; Millbrook, NY

National Center for Atmospheric Research; Boulder, CO

Motivation: Projection of future climate depends on projections of greenhouse gases, which depends on anthropogenic fossil fuel emissions, as well as on biogeochemical feedbacks of greenhouse gases. Here we focus on microbial, ecosystem and global controls on greenhouse gas fluxes, using both empirical and modeling approaches.

Our program brings together both empiricists and modelers from many fields to create an interdisciplinary approach to studying the cross-scale biogeochemical causes, consequences, and feedbacks of global climate change.

Multiple PhD positions available in many departments and graduate fields at Cornell. Deadlines vary by field. Please contact specific faculty to apply!

List of faculty and websites here (web site linked under last name).

Lastname	Firstname	Dept	Interests
Bauerle	Taryn	Horticulture	Root Biology, Plant Eco-physiology
Bedford	Barbara	NtRes	Wetland ecology - plants, hydrology, biogeochemistry, biodiversity conservation
Buckley	Dan	CSS	Microbial ecology and genomics; microbial diversity and biogeography in soils; microbial diversity and its relationship to soil biogeochemical processes
Chen	Gang	EAS	Climate dynamics, climate variability, and atmospheric transport
Derry	Lou	EAS	Geochemistry, biogeochemistry modeling
Fahey	Tim	NtRes	Forest ecology
Flecker	Alex	EEB	Biodiversity and ecosystem function; trait-based approaches for understanding species vulnerability and consequences of climate change on ecosystem processes; ecological stoichiometry
Gomes	Carla	CS	Computational sustainability
Goodale	Chrisine	EEB	Carbon sequestration; carbon-nitrogen interactions; catchment biogeochemistry; climate change impacts on forest ecosystems; nitrogen cycling, nitrogen retention; watershed processes
Greene	Charles	EAS	Ecological dynamics of marine animal populations; effects of global climate change on ocean ecosystems. algal biofuels
Hess	Peter	BEE	Atmospheric chemistry, biogeochemistry, climate/chemistry/biogeochemistry modeling, methane, nitrous oxide modeling, air quality, earth system modeling
Hewson	Ian	Microbiology	Biological oceanography; microbial roles in global elemental cycles; viruses and their impacts upon host biogeochemistry, from microbial to global scales
Howarth	Robert	EEB	Methane fluxes and budget; nitrogen fixation; scaling of microbial processes; human alteration of the N cycle; regional and global N and P budgets; atmospheric deposition of reactive N gases; environmental effect of biofuels and unconventional natural gas.
Kao-Kniffin	Jenny	Horticulture	Rhizosphere ecology, urban ecosystem ecology, plant-microbe biology
Kraft	Cliff	NtRes	Aquatic ecosystems, nutrient uptake, dissolved organic nitrogen cycling
Lehmann	Johannes	CSS	Soil biogeochemistry; soil C cycles; interaction with atmospheric and aquatic C; nanometer-scale soil C, N, S, and P; fire effects on black carbon in soil; transport and decomposition of black carbon; multi-scale study of biochar, including policy and economics
Lion	Len	CEE	Biogeochemical processes that influence the fate and transport of contaminants in aquatic systems
Lohman	Rowena	EAS	Satellite imagery to study changes in the earth's surface due to hazards such as earthquakes and landslides, climatic events and anthropogenic activity
Madsen	Eugene	Microbiology	Microbial ecology, biodegradation of environmental pollutants, biogeochemistry of subsurface systems, roles of microorganisms in C and N cycling.
Mahowald	Natalie	EAS	Aerosols, biogeochemistry, climate/biogeochemistry modeling, carbon cycle, methane, nitrous oxide, fires, earth system modeling
Pritchard	Matt	EAS	Remote sensing, cryosphere
Richardson	Ruth	CEE	Microbiology, remediation, reaction rates
Riha	Susan	EAS	Soil-plant-atmospheric dynamics, water resources management
Sparks	Jed	EEB	Applications of stable isotopes, plant physiological ecology, soil biogeochemistry
Shapleigh	Jim	Microbiology	Denitrification, anaerobic respiration, nitrogen cycle, diversity of respiratory mechanisms
Steenhuis	Tammo	BEE	Hydrology, water resources, biogeochemistry/water interactions
Thies	Janice	CSS	Soil biology, biogeochemistry and microbiology
Walter	Todd	BEE	Hydrology/ecohydrology, denitrification, phosphorus, methane, hydrology-microbial ecology interactions, modeling, watershed
Wolfe	David	Horticulture	Management and policy options for climate change adaptation and mitigation in agroecosystems; soil carbon assessment; soil health, water, and nitrogen management; conservation agriculture.
Yavitt	Joe	NtRes	Microbiology, soil biogeochemistry
Zinder	Stephen	Microbiology	Anaerobic biotransformations, pollutant biodegradation, diversity of biogeochemically important microbes.

Old biogeochemistry website