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Climate Change Planning in Alaska’s National Parks NATIONAL PARK SERVICE INVENTORY & MONITORING SOUTHWEST ALASKA NETWORK (SWAN) CLIMATE CHANGE SCENARIOS TRAINING 2010-2011 OVERVIEW Project Background Changing climatic conditions impact environmental, social and economic conditions in National Park System areas. Alaska park managers need to understand changes in order to more effectively manage various ecosystems and human uses. NPS and SNAP collaborate to help managers, personnel, and key stakeholders develop plausible climate change scenarios for Alaska NPS areas. National Park Service Areas in Alaska Arctic Network (ARCN) Central Alaska Network (CAKN) Southwest Alaska Network (SWAN) Southeast Alaska Network (SEAN) SWAN Parks and Sites The Aleutians World War II Monument was not included in this assessment of the SWAN network. Lake Clark Aniakchak Katmai Kenai Fjords Workshop Participants REPRESENTATIVES FROM: National Park Service (NPS) Scenarios Network for Alaska & Arctic Planning (SNAP) United States Geological Survey (USGS) Alaska Sea Life Center (ASLC) Bristol Bay Native Association (BBNA) U. S. Fish and Wildlife Service (USFWS) U. S. Department of Agriculture (USDA) – Forest Service SNAP: Scenarios Network for Alaska & Arctic Planning What is most important to Alaskans and other Arctic partners? o What changes are most likely? o What changes will have the greatest impact? o How can we adapt to those changes? o What are we best able to predict? Scenarios are linked to SNAP models, including: o Climate models o Models of how people use land and resources o Other models linked to climate and human behavior www.snap.uaf.edu The science of climate change Unequivocal scientific evidence that our planet is warming How this warming will affect climate systems around the globe is an enormously complex question Uncertainty and variability are inevitable Climate change presents significant risks to natural and cultural resources Understanding how to address uncertainty is an important part of climate change planning http://geology.com/news/labels/Global-Warming.html Pre-workshop webinars Feb 2, 2011: Basic concepts of scenarios planning outlined by GBN Data and resources available through SNAP and others Importance of planning for climate change Feb 9, 2011: Climate drivers for SWAN parks Feb 16, 2011: Climate effects table created for SWAN parks SNAP Methods: Projections based on IPCC models Calculated concurrence of 15 models with data for 1958-2000 for surface air temperature, air pressure at sea level, and precipitation. 2. Used root-mean-square error (RMSE) evaluation to select the 5 models that performed best for Alaska, 60-90°N, and 20-90°N latitude. 3. Used A1B, B1 and A2 emissions scenarios. 4. Downscaled coarse GCM output to 2km using PRISM data. 1. SNAP data: climate projections Projected Temperatures Temperature Precipitation (rain and snow) Every month of every year from 1900 to 2100 (historical + projected) 5 models, 3 emissions scenarios 2000s Available as maps, graphs, charts, raw data Online, downloadable - in Google Earth, GIS, or printable formats 2090s SNAP data: climate projections Temperature 2000s Precipitation (rain and snow) Every month of every year from 1900 to 2100 (historical + projected) 5 models, 3 emissions scenarios 2090s Available as maps, graphs, charts, raw data Projected January Temperatures 2000s & 2090s Online, downloadable - in Google Earth, GIS, or printable formats 1980s SNAP data: complex linked models Season length 2040s Shifting plants and animals (biomes and ecosystems) Water availability Forest fire 2080s Soil temperature and permafrost (example at left) Soil Temperature at 1m depth Geophysical Institute Permafrost Lab, UAF NPS Talking Points Papers Available for Alaska Maritime and Transitional and Alaska Boreal and Arctic Accessible, up-to-date information about climate change impacts to park resources Each paper has three major sections: Information on regional changes based on seven impacts 2. No Regrets Actions that can be taken now 3. Discussion of global climate change based on four topics 1. Access these and other documents at http://www.snap.uaf.edu/webshared/Nancy%20Fresco/NPS/ Climate Drivers, or “Scenario Drivers Based on Climate” Scenarios planners look at the general and specific changes expected in each climate driver, as well as the size and patterns of the expected change. Temperature Precipitation Relative humidity Wind speed Pacific Decadal Oscillation (PDO) Extreme weather events Sea ice Permafrost Snow Freeze-up date Sea level Water availability Atmosphere Climate Effects Selected and ranked by participants Increased carbon storage where forests spread; decreased where Greenhouse gases drought causes loss of forest or where fire and permafrost release methane and CO2 ATMOSPHERE Air temperature Precipitation Air temperature increases ~1°F per decade; greatest change in the north and in winter. Average annual precipitation increases. Relative amounts of snow, ice or rain change. Many areas experience drying conditions despite increased precipitation. More freezing rain events affect foraging success for wildlife, travel safety, etc. Lightning and lightning-ignited fires continue to increase. Storms Storm and wave impacts increase in northern Alaska where land-fast sea ice forms later. Air quality More smoke from longer and more intense fire seasons. Contaminants Increased contaminants and shifting contaminant distribution. [See “edited annotated effects SW parks”] Cryosphere Climate Effects Selected and ranked by participants Later onset of freeze-up and snowfall + earlier spring snowmelt and break-up. Snow/ice Arctic snow cover declines with higher air temperatures and earlier spring thaw. Lack of snow cover leads to deeper freezing of water in the ground or rivers. CRYOSPHERE Cultural resources are exposed as snow and ice patches melt and recede. Glaciers Most glaciers diminish as warming continues, though a few are still advancing. Glacial outwash affects aquatic productivity and forms deposits in shallow water. Glacial lakes fail more frequently, creating risk of flash floods and debris flows. Surging glaciers could block rivers and fjords, resulting in severe flooding. Less sea ice complicates travel, impacts ecosystems, and adds energy to storm surges. Sea ice Seasonal reductions in sea ice increase the risk of spills contaminating coastal resources. Reduced winter transportation affects opportunities for travel and subsistence. Ice roads Mercury & other pollutants are released into aquatic environments as permafrost Permafrost thaws. [See “edited annotated effects SW parks”] Hydrosphere Climate Effects Selected and ranked by participants st Sea level Global average sea level is predicted to rise 1-6 feet by the end of the 21 Century. Increased storm surges and permafrost erosion compound effects of change in sea level. Some coastal villages rapidly lose ground from storms, erosion and subsidence. HYDROSPHERE Increasing sea surface temperature affects fish, seabird, and wildlife populations. Marine Falling global phytoplankton could reduce ocean productivity and CO2 sequestration. Freshwater influx from thawing glaciers dilutes marine waters, stressing animals. Toxic marine algae & shellfish poisoning attributed to changes in water conditions. Ocean acidification affects food sources of fish, marine mammals & birds in the Arctic. Estuarine Coastal erosion and sea level rise increase the frequency of saltwater flooding. Some shallow water areas convert to terrestrial ecosystems with post-glacial rebound. Freshwater Stream flows from melting glaciers increase and then decrease over time. Ponds shrink as ground ice thaws or thermokarst drainage occurs in permafrost areas. Groundwater Groundwater supplies dependent on seasonal glacial recharge become less predictable. [See “edited annotated effects SW parks”] Climate Effects, as selected and ranked by participants LITHOSPHERE Ground level Ground level rises in recently de-glaciated areas because of isostatic rebound. LITHOSPHERE More roads and infrastructure fail or require repairs due to permafrost thaw. Ground stability Landslides and mud flows increase on steep slopes. Rapid glacial retreat and permafrost thaw leave steep and unstable slopes in valleys and fjords. Earthquake activity increases in recently deglaciated areas due to isostatic rebound. Large and small tsunamis could result from collapse of unstable slopes in fjords. Coastal erosion claims both natural and cultural resources and constructed assets. Burials and other remains are exposed as cultural sites thaw and erode. Soil Soil moisture declines due to rising soil temperature, thawing permafrost, and drainage. [See “edited annotated effects SW parks”] Biosphere Climate Effects – 1 of 4 Selected and ranked by participants Average number of frost-free days for the Arctic could increase between 20 and 40 days by 2100. Vegetation Increased agricultural production in Alaska because of longer growing season. Potential large-scale shift of tundra to shrubs, to conifers, to deciduous forests or grass. BIOSPHERE Atypical outbreaks of pests and diseases affect native species and increase fire hazards. Invasive exotic plant species and native species from other areas expand their ranges. Forests Black spruce may expand with warming – or contract as permafrost soils thaw and fires increase. Mature forests and “old growth” decline because of drought, insects, disease, and fire. Mature yellow cedars decline across southeast Alaska, possibly due to lack of insulating snow. Fire Models show a warmer climate leads to larger, more frequent and intense fires. Wildland fire hazards increase, affecting communities and isolated property owners. Fire-related landcover and soil changes result in vegetation shifts, permafrost thaw, etc. [See “edited annotated effects SW parks”] Biosphere Climate Effects – 2 of 4 Selected and ranked by participants Changes to terrestrial and aquatic species occur as ranges shift, contract, expand. Wildlife Animals and plants will expand into landscapes vacated by glacial ice. BIOSPHERE Migratory routes and destinations will change (e.g., wetlands, open tundra, snow patches). Arctic and alpine birds’ breeding habitats reduced as trees and shrubs encroach on tundra. Birds Waterfowl shifts occur as coastal ponds become more salty. Productivity of nesting shorebirds may increase if schedules change to coincide w/ insects. Predation on ground nesting birds could increase if prey (lemming) abundance declines. Coastal seabirds (e.g. Ivory Gull and Aleutian Tern) are vulnerable to climate change. Population cycles of birds and their prey could be out of sync due to higher temperatures. Marine Mammals Arctic marine mammals (e.g. seals, walrus, whales) are affected by sea ice decline. Less sound absorption (ocean acidification) affects marine mammals that rely on echolocation. [See “edited annotated effects SW parks”] Biosphere Climate Effects – 3 of 4 Selected and ranked by participants Caribou/ Reindeer BIOSPHERE Moose Caribou and reindeer health are affected by changes in weather, forage, and insects and pests. Earlier green-up could improve caribou calf survival because of more available forage. Caribou may suffer heavy losses if rain events prevent successful feeding during cold weather. Shifts in forests could mean less habitat for caribou, but more habitat for moose. Climate change could hinder moose calf birth success and moose calf survival. Fire may create new burrowing habitat and forage growth to help vole populations. Small Mammals Less snow cover = increased predation & cold stress for subnivian species. Commercial fisheries affected by changes to ocean communities in the Bering Sea. Some marine plant and animal populations may decline with ocean acidification. Fisheries New stream habitats become available for fish and wildlife as glaciers decline. Some salmon waters may become unsuitable for migration, spawning and incubation. Fish habitats in permafrost areas are degraded by slumps and sediment input into rivers. Invertebrates Ice worm populations decline locally as glacier habitats melt. Exotic pests expand from warmer areas, endemic pests expand as host species are stressed. [See “edited annotated effects SW parks”] Biosphere Climate Effects – 4 of 4 Selected and ranked by participants Altered animal migration patterns make subsistence hunting more challenging. BIOSPHERE Subsistence Sea ice changes make hunting for marine mammals less predictable & more dangerous. Managing new species and intensified management of native species may be needed. Tourism Longer summer seasons and more cruise ships in the Bering Strait could increase tourism. Hazards Safety hazards related to climate change, e.g. thin ice, flooding, changing fire regimes, etc. TEK Uses of traditional ecological knowledge become less predictive and less reliable. Development More natural resource development in Alaska with increasing global demand. More developmental pressures, e.g. opening of Northwest Passage, community resettlement, etc. [See “edited annotated effects SW parks”] Aug 2010 Training Workshop: Scenarios Planning Process Led by Global Business Network (GBN) Participants learned how to develop scenarios based on a nested framework of critical uncertainties Participants fleshed out beginnings of climate change scenarios for two pilot park networks Global Business Network (GBN) - A member of the Monitor Group ©2010 Monitor Company Group Forecasts vs. Scenarios Forecast Planning One Future -10% +10% What we know today Global Business Network (GBN) Scenario Planning Multiple Futures Uncertainties What we know today ©2010 Monitor Company Group Explaining Scenarios: A Basic GBN Scenario Creation Process This diagram describes the 5 key steps required in any scenario planning process What is the strategic issue or decision that we wish to address? What critical forces will affect the future of our issue? How do we combine and synthesize these forces to create a small number of alternative stories? Global Business Network (GBN) As new information unfolds, which scenarios seem most valid? Does this affect our decisions and actions? What are the implications of these scenarios for our strategic issue, and what actions should we take in light of them? ©2010 Monitor Company Group Scenario Creation Process Step One: Orient Strategic issue or decision: How can NPS managers best preserve the natural and cultural resources and values within their jurisdiction in the face of climate change? Kenai Fjords National Park To address this challenge, we need to explore a broader question: How will climate change effects impact the landscapes within NPS management units over the next 50 to 100 years? Photo credit: Kenai Fjords | http://www.ent.iastate.edu/sip/2005/companiontours Scenario Creation Process Step Two: Explore What critical forces will affect the future of our issue? CRITICAL CRITICAL UNCERTAINTIES UNCERTAINTIES BIOREGION: ______________ BIOREGION: ________________ Over the next 50 – 100 years, what will happen to . . . ? Over the next 50─100 years, what will happen to…? ERT-HLY 2010 Global Business Network (GBN) Copyright © 2010 Monitor Company Group, L.P. — Confidential Critical forces generally have unusually high impact and unusually high uncertainty 1 ©2010 Monitor Company Group Climate Scenarios Combining two selected drivers creates four possible futures Global Business Network (GBN) Driver 2 BIOREGION: ______________ Driver 1 ©2010 Monitor Company Group “Nested Scenarios” 1 2 3 4 Lack of senior commitment Varied approach & alignment Short-term concerns Is Anyone Out There?... Global Business Network (GBN) Big problems, Big solutions… 5 6 7 8 Senior commitment International alignment Long-term perspectives Nature of Leadership 9 10 11 12 Degree of Nesting each story in a social framework creates 16 possibilities Societal Concern Broad Understanding Heightened Urgency Riots and Revolution… Widespread indifference Competing concerns 13 14 15 16 Wheel-Spinning… ©2010 Monitor Company Group Step 3: Synthesize BIOREGION: ________________ SocioPolitical Describe This World in 2030 Major Impacts on the Bioregion Issues Facing Management Bioregion Climate Nested Scenario Details The 16 possible futures created in the preceding steps must be narrowed down to 3-4 scenarios that are relevant, divergent, challenging, and pertinent. Each has its own narrative (story). Scenario Creation Process Step Four: Act Categorizing Options to Help Set Strategy Robust: Pursue only those options that would work out well (or okay) in any of the four scenarios - OR - Bet the Farm Core Hedge Your Bets Hedge Your Bets Bet the Farm: Make one clear bet that a certain future will happen — and then do everything you can to help make that scenario a reality - OR - Robust Satellite Hedge Your Bets Global Business Network (GBN) Hedge Your Bets: Make several distinct bets of relatively equal size Hedge Your Bets - OR Satellite Core/Satellite: Place one major bet, with small bets as a hedge against uncertainty, experiments, real options ©2010 Monitor Company Group SWAN Workshop Results Step 1: Orient Strategic issue or decision: Example: Riverine To address this challenge, we need to explore a broader question: Nuka River, Kenai Fjords National Park | Photo credit: Sandra Healy Step 2: Explore • Precipitation (low/high variation) Precipitation Thaw • Thaw Days (more/less) Days Climate drivers selected by workshop participants for Riverine: Climate Scenarios (Riverine) More with warming PDO phase Each quadrant yields a set of future conditions which are: “JuneauHelly/Hansen” “Smokey” 1 Days 2 High Variation Precipitation Thaw Less Variation “Freeze Dried” “Tiny Ice Age” 3 4 Less with cold PDO phase • • • • plausible challenging relevant divergent Step 3: Climate scenarios 1&2 (Riverine) 1) “Smokey” 2) “Juneau/Helly Hansen” Drought stressed vegetation Increase in rain-on-snow events Increased disease/pests Thicker vegetation Maximum shrub expansion Increased erosion Long-term reduction stream flow Increased evaporation (soil drying) Initially higher stream flows from More berries glacial melt Reduction/loss of glaciers Increased fire on landscape 40% reduction in salmon fry Lowering of groundwater tables Decrease in stream flow Decrease in subsistence Increase in park infrastructure impacts Decrease in backcountry visitation (more rain, fewer flying days) Increased difficulty in controlling contamination (runoff) Increase in avalanches Step 3: Climate scenarios 3&4 (Riverine) 3) “Freeze Dried” Permafrost persists 4) “Tiny Ice Age” Increase damage risk in cultural Decrease in productivity (plant, berries)…impact on wildlife Overland access continues Competition of water resources (mining, communities) Facilities/infrastructure stable Slow retreat of tundra ponds Extend range of Dahl Sheep Lichens stable, supporting caribou High wind potential Brown bear decrease resources/infrastructure Increase bear activity for Brooks Camp (KATM) Decrease in ungulates Decrease in bark beetle and fire KATM Brooks Camp barge has adequate Naknek Lake water depth to access Stable glaciers High summer stream flows Increase in winter access. Step 4: Choosing Response Strategies Robust responses are common no-regrets actions, but they are not the only possibility. In some cases, it may make sense to hedge bets to avoid an occurrence that appears in only one or two scenarios, or to set up core and satellite responses to deal with variability among scenarios. Global Business Network (GBN) - A member of the Monitor Group Bet the Farm Core Hedge Your Bets Satellite Hedge Your Bets Robust Hedge Your Bets Hedge Your Bets Satellite ©2010 Monitor Company Group Step 4: Common No Regrets Actions Coordinate communication with other agencies Tune planning process to account for multiple possibilities Create seamless data sets Get missing players to the climate change scenario table at subsequent meetings Provide science outreach and education to multiple audiences Next Steps The scenario planning process doesn’t end with “SYNTHESIZE” • Teleconferences and webinars to confirm results and fill in gaps • Discussion of how to turn plans into concrete actions • Development of outreach tools and information, including final report • Dissemination of scenarios and explanations of the process and results to a broad audience • Feedback from a wider audience • Linkages with planning for other park networks Global Business Network (GBN) - A member of the Monitor Group ©2010 Monitor Company Group