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Divergent Carbon Dynamics Under Climate Change In Forests With Diverse Soils, Tree Species, And Land Use Histories, Robert M. Scheller, Alec M. Kretchun, Steve Van Tuyl, Kenneth L. Clark, Melissa S. Lucash, John Hom Nov 2012

Divergent Carbon Dynamics Under Climate Change In Forests With Diverse Soils, Tree Species, And Land Use Histories, Robert M. Scheller, Alec M. Kretchun, Steve Van Tuyl, Kenneth L. Clark, Melissa S. Lucash, John Hom

Environmental Science and Management Faculty Publications and Presentations

Accounting for both climate change and natural disturbances—which typically result in greenhouse gas emissions—is necessary to begin managing forest carbon sequestration. Gaining a complete understanding of forest carbon dynamics is, however, challenging in systems characterized by historic over-utilization, diverse soils and tree species, and frequent disturbance. In order to elucidate the cascading effects of potential climate change on such systems, we projected forest carbon dynamics, including soil carbon changes, and shifts in tree species composition as a consequence of wildfires and climate change in the New Jersey pine barrens (NJPB) over the next 100 years. To do so, we used …


Land Cover, Climate, And The Summer Surface Energy Balance In Phoenix, Az, And Portland, Or, Ariane Middel, Anthony J. Brazel, Patricia Gober, Soe Win Myint, Heejun Chang, Jiunn-Der Duh Nov 2012

Land Cover, Climate, And The Summer Surface Energy Balance In Phoenix, Az, And Portland, Or, Ariane Middel, Anthony J. Brazel, Patricia Gober, Soe Win Myint, Heejun Chang, Jiunn-Der Duh

Institute for Sustainable Solutions Publications and Presentations

Changes in land use and land cover alter the local energy balance and contribute to distinct urban climates. This paper presents a local-scale above-canopy study of intra-urban land cover mixes in two cities to analyse the relative effects of surface morphology and local climate on the surface energy balance (SEB). The study is conducted for urban areas in Phoenix, Arizona, and Portland, Oregon, cities with distinct climates but similarly warm and dry summers. A Local-Scale Urban Meteorological Parameterization Scheme (LUMPS) is used to analyse the relative contributions of local weather extremes and land cover variations on the urban energy balance. …


Behavioral Perspectives On Home Energy Audits: The Role Of Auditors, Labels, Reports, And Audit Tools On Homeowner Decision-Making, Aaron Ingle, Mithra Moezzi, Loren Lutzenhiser, Zachary Lawrence Hathaway, Susan Lutzenhiser, Joe Van Clock, Jane Peters, Rebecca Smith, David Heslam, Richard Diamond Jul 2012

Behavioral Perspectives On Home Energy Audits: The Role Of Auditors, Labels, Reports, And Audit Tools On Homeowner Decision-Making, Aaron Ingle, Mithra Moezzi, Loren Lutzenhiser, Zachary Lawrence Hathaway, Susan Lutzenhiser, Joe Van Clock, Jane Peters, Rebecca Smith, David Heslam, Richard Diamond

Center for Urban Studies Publications and Reports

Our study focused on the perspective of homeowner decision-making in response to home energy audits, combined with attention to the quality of the recommendations that homeowners receive, as well as the perspectives of some key industry actors on auditing and home energy labels. Unlike a program evaluation, the research was not designed to answer detailed questions about program effectiveness in terms of costs, savings, or process, nor was it designed to provide direct answers to questions of how to get people to do more audits or more retrofits. Rather it “steps back” toward a better understanding of more basic questions …


How Well Do Home Energy Audits Serve The Homeowner?, Aaron Ingle, Mithra Moezzi, Loren Lutzenhiser, Richard Diamond Jan 2012

How Well Do Home Energy Audits Serve The Homeowner?, Aaron Ingle, Mithra Moezzi, Loren Lutzenhiser, Richard Diamond

Center for Urban Studies Publications and Reports

Home energy audits administered by utilities and government typically provide homeowners with lists of technical upgrade recommendations intended to increase the technical energy efficiency of the house. Audits proceed with assessment of physical characteristics, subsequently processed with a computational model and transformed into a report, sometimes customized by the auditor. While the design of an energy audit reflects program and policy points of view – balancing program cost with expected program savings, educating people about the value of energy efficiency, etc. – it is crucial to consider the criteria for a good home energy audit and recommendations from homeowners’ points …


Changing Climate, Changing Behavior: An Interview With Angus Duncan, Michael Burnham Jan 2012

Changing Climate, Changing Behavior: An Interview With Angus Duncan, Michael Burnham

Institute of Portland Metropolitan Studies Publications

In a 2010 report, the Oregon Legislature-created Oregon Global Warming Commission (OGWC) stated "with confidence" that human activities were primarily responsible for a 1.5 degree Fahrenheit increase in 20th century temperatures in the Pacific Northwest. Transportation and electricity were responsible for about 70 percent of Oregon's greenhouse gas emissions during the 2003-2007 period of study, while agriculture, waste, combustion, leakage, and other sources were responsible for the balance of emissions. Metroscape's Michael Burnham sat down with OGWC Chairman Angus Duncan recently to discuss the commission's work and how a warming world might affect the metropolitan Portland area economically, socially, and …


Lifestyles, Buildings And Technologies: What Matters Most?, Loren Lutzenhiser, Huafen Hu, Mithra Moezzi, Anthony Michael Levenda, James Woods Jan 2012

Lifestyles, Buildings And Technologies: What Matters Most?, Loren Lutzenhiser, Huafen Hu, Mithra Moezzi, Anthony Michael Levenda, James Woods

Center for Urban Studies Publications and Reports

There is considerable variation across households in energy use, even within similar climates and housing styles. There is also considerable variation in energy savings following upgrades of housing and appliances. We combine empirical data on household consumption with advanced simulation modeling techniques to investigate just how much behavior matters in determining consumption levels. compared to weather, technology and building characteristics. We explore several new concepts, including the BETA (building, environment, technology, activity) Model of household energy use, a habitation zone approach that can be used to differentiate BETA effects, and a hybrid (simulation/ statistical) end-use consumption analysis approach. For illustrative …