addressing climate change adaptation in regional transportation plans

Climate Impact RegionsThe APG is organized into a series of climate impact regions (see Figure 1). Theregions allow for greater depth and more detailed guidance to be presented. Theregions were designated based on county boundaries in combination withprojected climate impacts, existing environmental setting, socioeconomicfactors, and regional designations and organizations.NorthNorth CoastBay AreaCentral CoastNorthern Central ValleySouthern Central ValleyNorth SierraSoutheast SierraSouth CoastDesertBay-Delta RegionFIgure1. Climate Impact Regions.North Coast• Sea level rise• Threats to sensitive species• Reduced agricultural productivityNorth• Increased wildfire• Reduced snowpack• Ecosystem shiftsBay Area• Coastal inundation and erosion• Public heath - heat and air pollution• Reduced agricultural productivityNorthern Central Valley• Reduced agricultural productivity• Increased wildfire• Public health - heatBay-Delta Region• Flooding• Reduced agricultural productivity• Public heath - heat and air pollutionThe 11 regions presented in this document arelisted below, along with a selection of the potentialimpacts faced by each region.Southern Central Valley• Reduced agricultural productivity• Public health - heat• Reduced water supplyCentral Coast• Reduced agricultural productivity• Coastal flooding• Biodiversity threatsNorth Sierra• Reduced tourism• Ecosystem change• Increased wildfireSoutheast Sierra• Economic impacts – tourism decline• Substantially reduced snowpack• FloodingSouth Coast• Sea level rise• Reduced water supply• Public healsth - heat and air pollutionDesert• Water supply• Public health and social vulnerability• Biodiversity threatsAPG: UNDERSTANDING REGIONAL CHARACTERISTICSPAGE ii