Understanding and Assessing Impacts
According to the Climate Atlas of Canada, from 2051-2080 under a high emissions scenario (RCP8.5), Atlantic Canada will experience an increase in extreme temperature parameters and an increase in the frequency and intensity of precipitation, including rain, snowfall, freezing rain, sleet, and hail. As permafrost continues to melt and sea levels rise, there will be more storm surges, wave run-up, coastal flooding, and erosion. Wastewater pumping stations, gravity sewers, wastewater treatment sites, and drinking water sources are examples of infrastructure at risk of spring flooding, power outages, and other operational issues during surge tide and severe rain events in Atlantic Canada. Municipal infrastructure that is not built to withstand these impacts will lead to the disruption of essential services, threaten the health and safety of residents, and accumulate high costs for its replacement. As the region’s water and wastewater industry leader, the ACWWA recognized the susceptibility of Atlantic Canada to the effects of climate change, and saw the need to renew policies and guidelines to promote best practices and maintain a high level of confidence in the integrity of public infrastructure.
For additional climate information, look at the Resources section of this example (below).