Tag: Sea Level Rise

The Intergovernmental Panel on Climate Change (IPCC) released the Working Group I contribution to the Sixth Assessment Report which will arrive fully in 2022. Among the reaffirmed findings in the report is that we are already most of the way to the 1.5 degree Celsius threshold over pre-industrial global temperatures where climate-related damage becomes more widespread and harder to turn back. We wanted to examine what that means in practical human terms. According to NOAA (R. Lindsey, Jan. 25, 2021), we have seen 8 – 9 inches of sea level rise since 1880, and in some ocean basins nearly that much just since the beginning of the satellite record. Taking the IPCC findings into account and with NOAA’s own models, sea level could rise another foot over 2000 levels by the end of the century. The two images provided are from NOAA’s Sea Level Rise Viewer. The first is a view of the heart of the Northeast Corridor from Long Island Sound down to the Chesapeake at the current “Mean Higher High Water”. The principal shading illustrates the population vulnerability to sea level rise. The second is the same view under a 1 foot MHHW scenario. Note the amount of coastal inundation, particularly around high density and vulnerable populations. The amount of property and population at risk in human and dollar terms is staggering in this relatively concentrated area, and has implications for municipalities, commercial real estate, infrastructure, corporations, maritime interests, tourism, and residential neighborhoods, and all the supply chains and institutions elsewhere like banks and insurance companies that are exposed to that risk. Smart investing requires thinking about mitigation, resiliency, and adaptation, hallmarks of ESG investing and increasingly becoming part of mainstream investing.