CIA – An Interrogation Based on the September CaRDI Research and Policy Brief with Charles Geisler and Richard Stedman http://devsoc.cals.cornell.edu/cals/devsoc/outreach/cardi/publications/upload/Policy_Brief_Sept10-draft05.pdf What is Cumulative Impact Assessment and Why Does it Matter?
David Kay email@example.com
What are Cumulative Impacts? Individual effects of many actions combine over time and/or space. Combined impact typically greater than the individual projects added together. Thresholds – for individual projects vs. collectively
“Cumulative impact” is the impact on the environment which results from the incremental impact of the action being analyzed when added to other past, present, and reasonably foreseeable future actions regardless of what agency (Federal or non-Federal) or person undertakes such actions
Cumulative Impact Mechanisms Causal linkage: a given action influences the likelihood that other actions will follow Eg. extending a sewer line increases the likelihood that farmers will sell their land for development, and each sale increases the chance of additional sales) The same resource affected by (small and) independent projects Eg. fish habitat silts up due to runoff from many small, unrelated upstream logging operations
EAs “…do not sufficiently identify or discuss the incremental impact that can be expected from each successive timber sale, or how those individual impacts might combine or synergistically interact with each other.”
Klamath-Siskiyou Wildlands v. BLM (2004from Michael Smith) “Although each of the EAs contains a section of more than a dozen pages under the heading ‘Cumulative Effects,’ a close read reveals that those sections do not adequately discuss the subject. A considerable portion of each section discusses only the direct effects of the project at issue on its own minor watershed.”
other actions - past, proposed, and reasonably foreseeable - that have had or are expected to have impacts in the same area
the impacts or expected impacts from these other actions
the overall impact that can be expected if the individual impacts are allowed to accumulate
Fritiofson v. Alexander, 772 F.2d 1225 (5th Cir. 1985)
CIA Techniques (CEQ 1997) Questionnaires, interviews, and panels to gather information about the wide range of actions and effects needed for a cumulative effects analysis. Checklists to identify potential cumulative effects by reviewing important human activities and potentially affected Matrices to determine the cumulative effects on resources, ecosystems, and human communities by combining individual effects from different actions. Networks and system diagrams to trace the multiple, subsidiary effects of various actions that accumulate upon resources, ecosystems, and human communities. Modelingto quantify the cause-and effect relationships leading to cumulative effects. Trends analysis to asess the status of resources, ecosystems, and human communities over time and identify cumulative effects problems, establish appropriate environmental baselines, or proiect future cumulative effects. Overlay mapping and GIS to incorporate locational information into cumulative effects analysis and help set the boundaries of the analysis, analyze landscape parameters, and identify areas where effects will be the greatest.
Smith: Is CIA impossible (or at the least – really, really hard to do)? Lack of time and resources to effectively analyze large spatial and temporal scales Lack of sufficient data or methods Lack of baseline information Vague plans for the future
General Approaches Tailored to environmental law Environmental impact statements triggered by project proposal(s) Purpose to produce information about environmental impacts that decision makers consider Policy focused planning approaches Proactive, less technical, bigger picture, balance of policy considerations on community/regional scale Link between two in NYS Traditions of comprehensive planning and generic environmental impact statements