Contact Us

Pacific Northwest Climate Impacts Research Consortium (CIRC)

Oregon State University | 370 Strand Agricultural Hall | Corvallis, OR, 97331

Tel: 541-737-5705 | Fax: 541-737-2540



CIRC Leads


    Denise Lach

    Oregon State University
    CIRC Co-Lead
    Lead: Community Adaptation

A trained sociologist, Denise Lach heads CIRC’s Community Adaptation efforts. Denise is the founding director of Oregon State University’s School of Public Policy, a multi-disciplin­ary organization that encompasses the departments of Economics, Political Science, and Sociology. Her own research interests revolve around the interface between climate science and decision-making, how climate science gets put to work for our communities (or not), and how we in the adaptation community need to step up our game to help communities adapt to climate change. She has been known to play the ukulele for select audiences.


    Philip Mote

   Oregon State University
    CIRC Co-Lead
    Lead: Climate Tools
    Twitter: @pwmote

A professor of atmospheric sciences at Oregon State University, Philip Mote heads CIRC’s Climate Science activity. Along with co-leading CIRC, Phil directs the Oregon Climate Change Research Institute (OCCRI) and the Oregon Climate Service, and has helped co-lead several long-term research projects looking into the impacts of climate change. You might also find him rowing along the Northwest’s scenic waterways.



Oregon State University
Project Manager and Stakeholder Engagement Specialist

Ann Mooney is CIRC’s Project Manager and Stakeholder Engagement Specialist. A native of Spokane, Washington, Ann joined CIRC in January 2018. Prior to CIRC, she worked for the National Geographic Society, supporting efforts to protect animal migrations. She has also worked extensively with CIRC’s parent organization, the National Oceanic and Atmospheric Administration (NOAA), as part of an effort to protect coral reefs and local fisheries in Southeast Asia and as part of a NOAA effort to remove derelict fishing gear from the atoll system of the Northwestern Hawaiian Islands, where, among other skills, she mastered tying complex knots underwater with her eyes closed. (We’re not kidding…she can do this.) 

Nathan Gilles

Oregon State University
Communications Specalist
Nathan Gilles is CIRC’s Science Communications Specialist. He is the Managing Editor of The Climate Circulator, oversees CIRC’s social media accounts and website, and has been known to sneak—as if by some occult hand—obscure hipster references into otherwise vanilla content simply for his own amusement. (See if you can find them all.) When he’s not writing for CIRC, Nathan works as a freelance science journalist. 

Susan Osredker

Oregon State University
Office Manager
Phone: 541-737-5705

As the Office Manager for CIRC and the Oregon Climate Change Research Institute, Susan Osredker keeps the wheels moving. Susan handles travel logistics, keeps the calendars for our main office, finagles funding, and helps coordinate meetings and receptions. An avid gardener who grows vegetables and flowers, Susan loves to hike and read books. Yeah, she’s a pretty typical Oregonian.


Adell Amos

University of Oregon
Community Adaptation

Adell Amos is the Associate Dean for Academic Affairs at the University of Oregon School of Law. An expert in state and federal water law, Adell worked on the Willamette Water 2100 project, an effort to model how water supply in the Willamette River basin is expected to change under climate change and other drivers. Her paper in the Kansas Law Review outlines some of the legal concerns that could arise should water scarcities result. She is currently applying her legal scholarship to CIRC’s other Community Adaptation efforts. When she’s not discerning the finer points of water law, Adell enjoys camping, gardening, and river rafting.

John Abatzoglou

University of Idaho
Lead: Northwest Climate Toolbox
Twitter: @climate_guy

A self-described “weather weenie,” John Abatzoglou is the creator of the Multivariate Adaptive Constructed Analogs (MACA), a tool that translates large scale global climate data into small scale visualizations of local climate impacts. A researcher at the University of Idaho, John has written multiple papers on both observed and projected climate changes in the Northwest. His work has been essential to several CIRC projects, including the Northwest Climate Toolbox and Integrated Scenarios and PUMA. John is currently building several Climate Tools for CIRC as well as the CIRC-related tool Climate Engine. He is from California, a land whose placid weather he claims inspired his interest in climate. Go figure.

Jeffrey Bethel

Oregon State University
Community Adaptation
Lead: Climate and Health

An epidemiologist and researcher at Oregon State University, Jeffrey Bethel is leading CIRC’s effort to examine how climate change is expected to affect the health of our Northwest communities. To that end, Jeff has worked with the Oregon Health Authority on creating Oregon’s Health and Climate Resilience Plan, he was the lead writer for the chapter on human health in "Climate Change in the Northwest: Implications for Our Landscapes, Waters, and Communities." As part of CIRC’s Community Adaptation effort, Jeff is currently examining the potential health impacts from climate change for the Grays Harbor Coastal Futures project. Jeff is an inordinately big fan of the Cohen brothers’ immortal classic The Big Lebowski, which is why we call Jeff “His Jeffness,” “Jeffer,” and “El Jefferino,” if you’re not into the whole brevity thing.

John Bolte

Oregon State University
Community Adaptation
Head: Biological and Ecological Engineering Department

John Bolte is the creator of the Envision future scenarios modeling platform. Envision featured prominently in CIRC’s first five years, providing the backbone for several CIRC Community Adaptation efforts, including Big Wood Basin Alternative Futures, Envision Tillamook Coastal Futures, and Willamette Water 2100. Since 2002, John has been the head of the Biological and Ecological Engineering Department at Oregon State University. His work focuses on developing modeling and decision support tools supporting sustainable development and management of communities and ecosystems.

Meghan Dalton

Oregon State University
Community Adaptation/Climate Tools

A trained climate researcher with a BA in Mathematics from Linfield College and an MS in Atmospheric Science from the College of Earth, Ocean, and Atmospheric Sciences at Oregon State University, Meghan has worked closely with several Northwest communities working on Community Adaptation, including the water provider Seattle Public Utilities on the PUMA project. She is also very good at writing reports, having led the creation of Climate Change in the Northwest: Implications for Our Landscapes, Waters, and Communities, a Northwest regional climate assessment supporting the recent National Climate Assessment. Meghan can also recite several children’s books verbatim, a savant-like talent she owes to raising two young boys.

Kathie Dello

Oregon State University
Community Adaptation/Climate Tools
Lead: Coping With Drought
Twitter: @KathieDello

Kathie Dello is CIRC’s Coping With Drought expert (aka CIRC’s de facto “Drought Czar”). When she’s not Coping With Drought, Kathie works as the Associate Director of the Oregon Climate Change Research Institute (OCCRI) and the Deputy Director of the Oregon Climate Service while simultaneously pursuing her PhD in Environmental Sciences at Oregon State University. Kathie’s work includes climate impacts analysis, climate adaptation, state agency engagement, and public outreach for both CIRC and OCCRI. A media maven, you can find Kathie on twitter and read her blogs on drought and climate at The Climate CIRCulator and WXshift.

Paul Gessler

University of Idaho
Climate Data Mining/Climate Tools
Twitter: @nkndirector

Paul Gessler leads CIRC’s Data Mining effort as part of CIRC’s Climate Tools. When he’s not working with CIRC, Paul is Professor of Remote Sensing and Geospatial Ecology at the University of Idaho. His research interests are diverse but almost always involve the exploration of data for patterns and understanding. With training in soil science, remote sensing, and environmental modeling he enjoys utilizing a broad array of sensors, tools, and cyberinfrastructure to understand and monitor how ecosystems work. Originally from Wisconsin, Paul loves the bounteous supply of wilderness the Northwest has to offer. He enjoys kayaking, backpacking, hockey, gardening, and just plain hanging out in his log home in the forest with family.

Holly Hartmann

Cape Diem West
Climate Tools

Holly Hartmann is the Director of Climate Science Applications for Carpe Diem West, a nonprofit dedicated to tackling the challenges posed by climate change in the American West. Formerly the Director of the Arid Lands Information Center and a co-investigator in our fellow RISA team CLIMAS, Holly joined CIRC in 2015. She is currently working with CIRC’s fellow Climate Tools builders on assessing the user-friendliness of our sites and applications. Holly lives in Eugene, Oregon, where she enjoys hiking and gardening.

Kathy Lynn

University of Oregon
Lead: Climate and Tribes

Kathy Lynn coordinates the Pacific Northwest Tribal Climate Change Project, a collaboration between the University of Oregon’s Environmental Studies Program and the USDA Forest Service Pacific Northwest Research Station. The project focuses on building an understanding of how climate change may impact the culture and sovereignty of indigenous communities in the United States, and provides tribal members with information on grants, federal and state programs, and planning efforts underway in the Northwest around climate change. (For more information see the Tribal Climate Change Guide.) Kathy first got involved in Community Adpatation during her time in the Peace Corps. She speaks Creole and once crossed a torrential river, the result of a hurricane, which she doesn’t recommend.

Guillaume Mauger

University of Washington
Climate Tools/Community Adaptation
Twitter: @guillaumemauger

Guillaume Mauger is a member of CIRC’s partner organization the University of Washington’s Climate Impacts Group (CIG). A versatile research scientist whose work focuses on regional climate issues in the Northwest, including fundamental climate science, extreme events, and regional climate impacts, Guillaume is working with CIRC’s Community Adaptation team. CIRC’s other French import, Guillaume freely admits that being a climate scientist who lives in Seattle, avidly bikes everywhere he can, and who obsessively makes his own granola and bakes makes him a bit of stereotype. “But,” he says, “c’est la vie.”

Bart Nijssen

University of Washington
Community Adaptation/Climate Tools

Bart Nijssen is a hydrologist and leading member of the University Washington’s surface hydrology group. A large-scale hydrologic modeler, Bart has been instrumental in the development and running of the UW Northwest Drought Monitor, Integrated Scenarios, and in the PUMA project. His work has helped inform drought information systems, including the US Drought Monitor, in both for the western US and globally. He has worked for the University of Washington, the University of Arizona and for 3TIER, a private environmental prediction firm based in Seattle, where he lives and refuses to engage in social media.

Peter Ruggiero

Oregon State University
Community Adaptation
Lead: Grays Harbor Coastal Futures
Twitter: @prugg50
Peter Ruggiero has over twenty years of research experience studying coastal hazards in Washington and Oregon. With CIRC, Peter has focused on Community Adaptation in both states. His two CIRC projects are Envision Tillamook Coastal Futures and Grays Harbor Coastal Futures. Peter’s work connects the biophysical and social dimensions of coastal hazards by engaging coastal community members in the design of futures (plural) scenarios that allow participants to imagine the many choices and paths their communities could take under climate change and sea level rise. A sailor, who once named his sailboat “Aspara” and its dinghy “Gus” (Get it? Asparagus.), Peter enjoys the coast and the ocean in good weather and bad. We like the cut of your jib, Peter. Whatever that means.

David Rupp

Oregon State University
Climate Tools
Twitter:  @david_e_rupp

David Rupp works on CIRC’s Climate Science and Climate Tools efforts. Interested in climate variability and change, and, in particular, in how these two factors impact the hydrological cycle and water resources, David’s work assessing how well Global Climate Models perform in the Northwest has become the foundation of much of CIRC’s Climate Tools and Climate Adaptation efforts, including the Integrated Scenarios and Willamette Water 2100. David holds a BS in Atmospheric Sciences from the University of Arizona, an MS in Forestry from Northern Arizona University, and a PhD in Water Resources Engineering from Oregon State University. Even more impressive, David has actually read Umberto Eco’s mind-bending conspiracy tome "Foucault’s Pendulum." He is currently considering adding this fact to his CV.

Grad Students & Post Docs

Jessica Andrepont

Community Adaptation
Grays Harbor Coastal Futures

Jessica Andrepont is a PhD student in Public Policy at Oregon State University. Currently aiding CIRC’s Grays Harbor Coastal Futures project, Jessica works closely with CIRC Co-Lead Denise Lach to apply a social science perspective to the stakeholder-driven effort. Her research interests include: sea level rise, environmental justice, population displacement, and climate change policy and politics. Jessica is one of the most well traveled members of the CIRC team. So far she’s managed to visit two continents, 14 countries, and 31 US states. Her long-term, “bucket list” goal is to visit all seven continents and see more than a few extra countries along the way.

Katherine Hegewisch

University of Idaho
Climate Tools

Katherine Hegewisch is a Postdoctoral Fellow and adjunct professor at the University of Idaho. Working closely with CIRC’s John Abatzoglou, Katherine’s work has been essential for several CIRC efforts, including the Northwest Climate Toolbox and Integrated Scenarios, as well as the CIRC-related effort Climate Engine. She is currently working with CIRC’s Climate Tools team. Katherine enjoys volleyball, tennis, biking, rollerblading, figure skating, cross-country skiing, gardening, baking, and soap making. And if that wasn’t enough, she bikes eighteen miles (round trip) during the summer to the University of Idaho, and it’s uphill both ways. Okay, we made the uphill part up.

Iva Sokolovska

Oregon State University
Community Adaptation

Iva Sokolovska is a PhD student in Public Policy at Oregon State University who works closely with CIRC Co-Lead Denise Lach. Iva recently completed an evaluation of the effectiveness of CIRC’s Community Adaptation efforts. Her research interests include climate change policy, water resources policy, and community adaptation decision-making. Currently the project manager of the Women in Policy graduate student organization at OSU’s School of Public Policy, Iva is a certified Zumba instructor and cake decorator.

Kai Parker

Oregon State University
Grays Harbor Coastal Futures

Kai Parker is a PhD student in the Coastal and Ocean Engineering program at Oregon State University. Focusing on the Pacific Northwest’s estuaries and harbors, Kai’s research investigates coastal hazards under climate change. He is currently participating in CIRC’s Grays Harbor Coastal Futures project where his research aim is to improve how flooding is mathematically modeled. His goal is to empower stakeholders by providing them with the best available science as they respond to coastal hazards now and into the future. Outside of his heady hazards research, Kai strives to encounter as many hazards as possible in the flesh. He surfs, kayaks, rock and mountain climbs, and otherwise puts his body in harm’s way in the Pacific Northwest’s great and sometimes chaotic outdoors.

Erich Seamon

University of Idaho
Climate Data Mining/Climate Tools
Twitter: @erichseamon

Erich Seamon is currently working on his PhD in machine learning and climate informatics (which, yes, is pretty much what you think) at the University of Idaho, where he also finds time to work on CIRC’s Climate Tools and Climate Data Mining efforts. Seamon is currently working to develop the software and techniques that will allow CIRC to see connections in the vase quantities of data now available, particularly regarding the relationships of climate to agriculture and health. When he’s not looking for deep patterns in the universe of data, Seamon creates patterns of his own, rocking out on guitar, bass, and singing. He once worked in a bar that’s also a Laundromat, making him the coolest addition to the CIRC team to date. 

Past Participants

Dominique Bachelet

Conservation Biology Institute
Climate Tools
Twitter: @ConsBio

Dominique Bachelet has spent decades designing, improving, and running the dynamic general vegetation models that allow researchers and resource managers to visualize how our forests and farms are likely to transform under climate change. Dominique has been instrumental in developing Data Basin, a data management/data mining platform widely used in conservation research and applications. Originally from France, Dominique is a former Oregon State University Professor who has worked with the USDA Forest Service. She now works for the Conservation Biology Institute, a nonprofit environmental research group in Corvallis, Oregon. Dominique skis, bikes, and is a watercolor painter of some renown.

Janan Evans-Wilent

Oregon State University
Community Adaptation
Project Manager: Grays Harbor Coastal Futures

As a graduate research assistant, Janan Evans-Wilent worked closely with CIRC’s Peter Ruggiero on two CIRC Community Adaptation efforts: Grays Harbor Coastal Futures and Envision Tillamook Coastal Futures. Janan is yet another member of CIRC in the cult of rowing.

Katherine Serafin

Oregon State University
Twitter: @kaserafin

As PhD student at Oregon State University, Katherine (Katy) Serafin's work contributed greatly to both the Envision Tillamook Coastal Futures and Grays Harbor Coastal Futures projects. Katy’s research focuses on how waves, tides, and storm surges contribute to extreme flooding events. By understanding present day contributions to extreme events, she hopes to uncover clues to how future climate changes may affect coastal flooding and erosion. Her work involves traversing the beaches of Oregon and Washington, staying in beach houses, and riding jet skis. When she’s not cruising the coast, Katy enjoys camping, hiking, and rowing.


Conservation Biologist Institute
Climate Tools 
Tim Sheehan has over 30 years of experience in software engineering and development in fields as varied as climate modeling and stock trading. Tim works for CIRC’s partner organization the Conservation Biology Institute, our RISA Team has nonetheless drawn on Tim’s expertise over the years, including for our Integrated Scenarios project and more recently as part of our Climate Tools effort. Specializing in vegetation and fire modeling, Tim’s professional accolades include, leading the development of the Environmental Evaluation Modeling System, which allows users to construct models reflecting relationships among multiple factors affecting the environment and to explore the results in map layers. When he’s not building complex vegetation models, Tim spends his time building a sea kayak, an effort that, he admits, has been ongoing for some time. 


    John Stevenson

    Oregon State University
    Community Adaptation
    Regional Extension Climate Specialist (2011–2017)
    John Stevenson worked as CIRC’s Regional Climate Extension Specialist from 2011 to 2017. As part of his job, John was often the first CIRC team member to reach out and engage a community interested in Community Adaptation. Lucky for us, John proved to be down-to-earth and eminently likable. He was essential for several CIRC efforts, including Big Wood Basin Alternative Futures, Envision Tillamook Coastal Futures, and North Coast Climate Adaptation. An outdoorsy type, John rafts, fishes, and is an avid climber and backcountry skier. He is also a member of the Corvallis Mountain Rescue Unit, a volunteer organization providing search and rescue in difficult to access terrain. 

CIRC Advisory Council



Oregon Water Resources Department



Founder & Strategic Advisor
Cascadia Consulting



President and Co-Chair
Bonneville Environmental Foundation
Oregon Global Warming Commission



Northwest Regional Executive
US Geological Survey



Manager Climate Resiliency Group
Seattle Public Utilities



Climate Change Coordinator
Washington Department of Fish and Wildlife



Idaho Department of Water Resources



Watershed Programs Coordinator
Columbia River Inter-Tribal Fish Commission (CRITFC)



Manager Environmental Public Health 
Oregon Health Authority, State of Oregon



Director of Research & Development
Portland General Electric



North Pacific Landscape Conservation Cooperative (NPLCC)



Service Hydrologist
National Weather Service/National Oceanic and Atmospheric Administration



USDA Northwest Regional Climate Hub