North America's dams, levees, wastewater-management and water conveyance facilities have improved water supply safety and have reduced flood and drought risks, but a substantial portion of that infrastructure is ageing and inadequate for modern conditions . Increasingly heavy precipitation from a variety of storm types has affected parts of North America , contributing to contamination from combined sewer overflows  and increased flood damages that are partially attributed to anthropogenic climate change . Extreme precipitation events have overwhelmed water control infrastructure, imperilling public safety and contributing to extensive damages in parts of North America . Damages stem from extremity of the event and prior land-use and infrastructure decisions .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report