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2017 - Cities Climate Hazards

Row numberAccount numberOrganizationCountryRegionC40AccessProject YearClimate HazardsMagnitude of ImpactImpact DescriptionAssets or services that may be most impacted (1)Assets or services that may be most impacted (2)Assets or services that may be most impacted (3)
170131108City of HoustonUSANorth AmericaC40Public2017Flash/surface floodSeriousFlooding can disrupt mobility, damage buildings and assets in the community and increase risk of a water-borne illnesses.TransportOther: Health and communityOther: Water
170231109City of MelbourneAustraliaSouth Asia and OceaniaC40Public2017Rain stormExtremely seriousMore intense storms events are likely to increase flood frequency.TransportOther: PropertyOther: Health and community
170331108City of HoustonUSANorth AmericaC40Public2017Storm surgeSeriousStorm surges can disrupt mobility, damage buildings and assets in the community and increase salt water intrusion and affect water quality.TransportOther: CommericalOther: Water
170410894City of Los AngelesUSANorth AmericaC40Public2017DroughtExtremely seriousTree damageWater Supply & SanitationOther: WaterOther: Health and community
170510894City of Los AngelesUSANorth AmericaC40Public2017Extreme hot daysExtremely seriousDeathEnergyOther: Emergency servicesOther: Health and community
170610894City of Los AngelesUSANorth AmericaC40Public2017Flash/surface floodExtremely seriousDeathEmergency ManagementTransportOther: Health and community
170710894City of Los AngelesUSANorth AmericaC40Public2017Forest fireExtremely seriousDeath and destruction of propertyEmergency ManagementResidentialPublic health
170810894City of Los AngelesUSANorth AmericaC40Public2017Heat waveExtremely seriousDeathEnergyResidentialPublic health
170910894City of Los AngelesUSANorth AmericaC40Public2017Coastal floodSeriousInfrastructure damageCommercialTransportResidential
171010894City of Los AngelesUSANorth AmericaC40Public2017Severe windSeriousInfrastructure damageEmergency ManagementEnergyPublic health
171110894City of Los AngelesUSANorth AmericaC40Public2017Rain stormSeriousInfrastructure damageWater Supply & SanitationTransportEmergency Management
171231182City of San FranciscoUSANorth AmericaC40Public2017Coastal floodSeriousBeing surrounded on three sides by water, coastal flooding poses a serious threat to San Francisco's infrastructure and population.TransportPublic healthCommercial
171331182City of San FranciscoUSANorth AmericaC40Public2017DroughtExtremely seriousSourcing water from the Hetch Hetchy Reservoir across drought-stricken California and with limited and/or unpredictable changes in rainfall for direct capture, San Francisco has already grappled with this hazard. For that, the City knows that continued water stress and any future severe drought will garner extremely serious impacts city-wide, as well.Water Supply & SanitationEnvironmentResidential
171431182City of San FranciscoUSANorth AmericaC40Public2017Heat waveExtremely seriousGiven San Francisco's geography relative to the coast and warmer Central Valley of California, the City often experiences cooling fog and/or wind. Therefore, the consequences of a heat wave are more serious as residents, including vulnerable populations, are not prepared.Public healthResidential
171531182City of San FranciscoUSANorth AmericaC40Public2017Rain stormSeriousBecause the City has a combine sewer and storm drain system rainfall runoff can have consequences on both infrastructure and public health.TransportPublic healthWater Supply & Sanitation
171631182City of San FranciscoUSANorth AmericaC40Public2017Other: Urban Heat IslandSeriousCertain neighborhoods in the City have a high urban heat island effect which poses an impact to residents, in particular vulnerable populations, as temperatures warm.Public healthResidentialCommunity & Culture
171731182City of San FranciscoUSANorth AmericaC40Public2017Permanent inundationLess seriousThe San Francisco shoreline is relatively developed with seawalls and harder urban edges that are more at risk from coastal flooding than tidal inundation. The southern shoreline of the city is more natural and tidal wetland resources are at risk from rising sea level.Other: Parks, recreation, open space, natural habitats
171816581City of SeattleUSANorth AmericaC40Public2017Heat waveLess seriousIncrease in mean temperatures of 4.2 - 5.9 F by 2050s. increase in temperature of hottest days 6.5F.Other: Health and communityEnergyTransport
171916581City of SeattleUSANorth AmericaC40Public2017Coastal floodSeriousSea level rise of 1 foot by 2035 and 2 feet by 2060.Other: Health and communityTransportOther: Stormwater management
172016581City of SeattleUSANorth AmericaC40Public2017Flash/surface floodSeriousMore extreme precipitation 3-11% on average for the 2050s.Other: Stormwater management systemOther: Health and communityTransport
172131117City of TorontoCanadaNorth AmericaC40Public2017Extreme cold daysSeriousThere is a low probability scenario of an extended cold period near the end of the building heating season. If that cold period was widespread across North America, there is some chance that natural gas supplies could be low. Gas companies can shift gas from region to region. However if one or more critical pipelines were to be inoperative, this could conceivably result in a natural gas shortage. Various health effects arise from periods of cold weather exposure, including frostnip, frostbite and hypothermia. Vulnerable populations are at particular risk, including those with pre-existing illness (e.g. cardiovascular disease), infants and young children, the elderly, the marginally housed, homeless and people who work outside. It also puts stress on public infrastructure including roads and transportation services. The cumulative impact of these extreme events is a concern.EnergyOther: Health and communityOther: Emergency services
172231109City of MelbourneAustraliaSouth Asia and OceaniaC40Public2017Heat waveExtremely seriousAnnual average number of hot days (>35 degrees C) is expected to increase to 12-15 days by 2030 and between 15-32 by 2090.Other: Health and communityEnergyTransport
172360029City of Cagayan de OroPhilippinesSouth Asia and OceaniaPublic2017Other: prolonged ambient heat
172431117City of TorontoCanadaNorth AmericaC40Public2017Extreme winter conditionsSeriousThere is a low probability scenario of an extended cold period near the end of the building heating season. If that cold period was widespread across North America, there is some chance that natural gas supplies could be low. Gas companies can shift gas from region to region. However if one or more critical pipelines were to be inoperative, this could conceivably result in a natural gas shortage. Various health effects arise from periods of cold weather exposure, including frostnip, frostbite and hypothermia. Vulnerable populations are at particular risk, including those with pre-existing illness (e.g. cardiovascular disease), infants and young children, the elderly, the marginally housed, homeless and people who work outside. It also puts stress on public infrastructure including roads and transportation services.TransportOther: Emergency servicesOther: Health and community
172531117City of TorontoCanadaNorth AmericaC40Public2017Extreme hot daysSeriousToronto's climate is getting warmer – it is expected that by 2040, the number of hot days exceeding 30 degrees Celsius will increase threefold, from 20 to 66 days. The potential impact of extreme heat on morbidity and mortality is concerning, in particular for vulnerable populations including those with pre-existing illness (e.g. cardiovascular disease), infants and young children, the elderly, the marginally housed, homeless and people who work outside. An increase in the number of hot days will also exacerbate the need for air conditioning placing a greater burden on the electrical system which could result in a potential brownout or blackout affecting thousands of Toronto residents. Infrastructure implications include buckling and melting of highways and roads, mechanical failures, delays in travel times for commuters and the goods and services sector affecting supply and demand.EnergyOther: Health and communityOther: Emergency services
172631117City of TorontoCanadaNorth AmericaC40Public2017Flash/surface floodSeriousIn recent years, Toronto has experienced extreme rainfall resulting in widespread basement flooding; untreated sewage entering Lake Ontario; debris and hazardous material clean-up costing millions of dollars; electrical disruption affecting hundreds of thousands of Toronto residents; and, transportation disruption affecting thousands of commuters due to road closures, and public transport delays.Other: WaterTransportOther: Emergency services
172731117City of TorontoCanadaNorth AmericaC40Public2017Heat waveSeriousToronto's climate is getting warmer – it is expected that by 2040, the number of hot days exceeding 30 degrees Celsius will increase threefold, from 20 to 66 days. This will pose problems for the elderly, young children, and those who are ill or overweight. An increase in the number of hot days will also exacerbate the need for air conditioning placing a greater burden on the electrical system which could result in a potential brownout or blackout affecting thousands of Toronto residents. Infrastructure implications include buckling and melting of highways and roads, mechanical failures, delays in travel times for commuters and the goods and services sector affecting supply and demand.EnergyOther: Health and communityOther: Emergency services
172831117City of TorontoCanadaNorth AmericaC40Public2017Heavy snowSeriousHeavy snow conditions can pose a variety of risks including increased demand on the energy sector resulting in brownouts and blackouts; health implications for vulnerable populations and those working outdoors. It also puts stress on public infrastructure including roads, transportation services, and the electrical system as a whole.TransportOther: Emergency services
172931117City of TorontoCanadaNorth AmericaC40Public2017Insect infestationLess seriousA new infestation of the Asian long-horned beetle (ALHB) was identified in Toronto for the second time in December 2013. The forest pest poses a great risk to Toronto's hardwood and shade trees. 42 percent of shade trees in Toronto are preferred by the ALHB, specifically maple trees. As a result, the potential impact on Toronto's forest canopy is high. Hardwoods and shade trees provide shade and beauty, shelter birds and animals, help filter air pollutants, produce oxygen, and increase property values which could all be at risk as a result of the ALHB infestation. Another risk to Toronto's tree canopy is the emerald ash borer. The City of Toronto's recent tree canopy study estimates that there are 860,000 ash trees in total on public and private lands. Inspections and systematic surveys in 2008-2011 have confirmed the EAB infestation throughout most parts of the City.Public healthFood and agriculture
173031117City of TorontoCanadaNorth AmericaC40Public2017Rain stormSeriousIn recent years, Toronto has experienced extreme rainfall resulting in widespread basement flooding; untreated sewage entering Lake Ontario; debris and hazardous material clean-up costing millions of dollars; electrical disruption affecting hundreds of thousands of Toronto residents; and, transportation disruption affecting thousands of commuters due to road closures, and public transport delays.Other: WaterTransportOther: Emergency services
173131117City of TorontoCanadaNorth AmericaC40Public2017River floodLess seriousIn recent years, Toronto has experienced extreme rainfall resulting in thousands of basement floods; untreated sewage entering Lake Ontario; debris and hazardous material clean-up costing millions of dollars; electrical disruption affecting hundreds of thousands of Toronto residents; and, transportation disruption affecting thousands of commuters due to road closures, and public transport delays.ResidentialOther: Emergency servicesTransport
173231117City of TorontoCanadaNorth AmericaC40Public2017Vector-borne diseaseLess seriousVector-borne diseases are a less serious concern for Toronto. In recent years, West Nile Virus and Lyme disease have migrated northward posing increased risk to human health and specifically for Toronto residents - blacklegged ticks which transmit Lyme disease have been found in Toronto. The disease can affect the central nervous system, brain, joints or the heart affecting any age group. West Nile Virus can affect anyone – however; the elderly, children and those with a weakened immune system are at greater risk. As the climate continues to warm, Toronto may experience an increased number of health implications linked to vector-borne diseases.Other: Health and communityFood and agricultureEmergency Management
173331117City of TorontoCanadaNorth AmericaC40Public2017Extratropical stormLess seriousToronto was grazed by Hurricane Sandy. In 1954, Toronto experienced Hurrican Hazel.EnergyResidentialEmergency Management
173431109City of MelbourneAustraliaSouth Asia and OceaniaC40Public2017Other: Sea level riseExtremely seriousSea level rise by 2030 is expected to be between 7-19cm, and by 2090 27-89cmOther: PropertyOther: CommericalResidential
173531109City of MelbourneAustraliaSouth Asia and OceaniaC40Public2017Flash/surface floodExtremely seriousHeavy rainfall intensity is expected to increase by an average of 0.9 percent by 2030 and 5.9 percent by 2070 (large margins of error). The 5 per cent 1 in 20 year event could increase between 9-26 per cent by 2090.TransportOther: PropertyOther: Health and community
173631109City of MelbourneAustraliaSouth Asia and OceaniaC40Public2017DroughtSeriousDecreased water supply along with warmer temperatures are likely to increase drought risk and severity. Average rainfall could decline by 27 per cent or rise by 4 per cent over the years to 2090.Other: WaterOther: Health and communityFood and agriculture
173731109City of MelbourneAustraliaSouth Asia and OceaniaC40Public2017Extreme hot daysExtremely seriousAnnual average number of hot days (>35 degrees C) is expected to increase to 12-15 days by 2030 and between 15-32 by 2090.Other: Health and communityEnergyTransport
173851075City of ShenzhenChinaEast AsiaC40Public2017Rain storm
173951075City of ShenzhenChinaEast AsiaC40Public2017Monsoon
174051075City of ShenzhenChinaEast AsiaC40Public2017Lightning/thunderstorm
174151075City of ShenzhenChinaEast AsiaC40Public2017Extreme hot days
174251075City of ShenzhenChinaEast AsiaC40Public2017Cold wave
174351075City of ShenzhenChinaEast AsiaC40Public2017Coastal floodLess seriousthere are rivers channeled to the ocean, which may cause serious coastal flood to the inner city with overraisen sea level or tidal wave.Emergency ManagementWater Supply & Sanitation
174431169Government of Hong Kong Special Administrative RegionHong KongEast AsiaC40Public2017Extreme hot daysLess seriousThe increased frequency of extreme hot days poses a threat to our health and community, emergency services and energy.Other: Health and communityOther: Emergency servicesEnergy
174531169Government of Hong Kong Special Administrative RegionHong KongEast AsiaC40Public2017Rain stormLess seriousThe increased frequency of rain storm poses a threat to our transport, emergency services and education.TransportOther: Emergency servicesEducation
174631169Government of Hong Kong Special Administrative RegionHong KongEast AsiaC40Public2017Cyclone (Hurricane/Typhoon)Less seriousThe increased frequency of rain storm poses a threat to our transport, emergency services and education.TransportOther: Emergency servicesEducation
174731169Government of Hong Kong Special Administrative RegionHong KongEast AsiaC40Public2017Coastal floodLess seriousThe increased frequency of coastal flood poses a threat to our transport, emergency services and community.TransportOther: Emergency servicesOther: Community
174831169Government of Hong Kong Special Administrative RegionHong KongEast AsiaC40Public2017LandslideSeriousThe increased frequency of landslide poses a threat to our transport, emergency services and community.Other: CommunityTransportOther: Emergency services
174931158Hanoi CityVietnamSouth Asia and OceaniaC40Public2017Air-borne diseaseLess seriousAir pollution due to increased gas emissions, affecting human healthPublic healthEnvironmentOther:
175031158Hanoi CityVietnamSouth Asia and OceaniaC40Public2017Forest fireSeriousThe air temperature rises. The risk of forest fire rising, affecting the forest ecosystemEnvironmentPublic healthOther:

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created Dec 20 2017

updated Oct 4 2018

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