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6.A. - Page 35 of 251 <br />Figure 1: Number of High Heat Days in Redwood City for 2070 <br />CLIMAIL READY <br />SAN MAIIO CGUNTY <br />' oFremon[ <br />oSunnyvale I <br />an Jose <br />1 <br />uxs�r <br />Impacts of Climate Change on Redwood City <br />Uvermore \ <br />Legend <br />Extreme Heat <br />High Heat Days <br />High Heat DaysNear- 2070 <br />0.2 days <br />3. 5 days <br />6.9 days <br />10 - 35 days <br />Base Layers and Boundaries <br />City Boundary <br />County Boundary <br />11 <br />Only 10 percent of homes in the Bay Area currently have air conditioning .23 Warming trends across San Mateo <br />County are expected to cause more people to install and use air conditioning, resulting in an increase in GHG <br />emissions. The largest increase in summer energy demand is expected in coastal cities as air conditioning adoption <br />grows. <br />The amount and location of new air conditioning needed can be predicted through a metric called "cooling degree <br />days" (CDD). This value quantifies how much the air temperature exceeds 65°F on a single day or period of days. <br />As the temperature rises above 65°F outside, occupants inside get increasingly uncomfortable and will typically turn <br />on air conditioning if it is available, so a larger CDD indicates a higher likelihood of increased energy consumption <br />to cool homes and businesses. <br />In some San Mateo County communities, CDDs are projected to double or triple between present day and 2070. It <br />is projected that the southeast, central -east, and coastal areas of the county will be impacted most dramatically, <br />with the greatest percentage increases expected to occur in Pacifica, Daly City, and Brisbane Quarry. <br />City of Redwood City Climate Action Plan 24 <br />340 <br />