||| FROM RUSSEL BARSH for KWIAHT |||


Road washouts last month gave a clear signal to islanders: an increasingly stormy climate threatens critical infrastructure such as roads, power and communications lines, and supplies of potable water. San Juan County urgently needs to act now to “harden” its infrastructure against a future of extreme weather events, higher storm tides and widespread flooding.

Whatever the fate of the commitments made at COP26 in Glasgow, no matter how loudly we protest international gridlock over reducing greenhouse emissions, and despite the best efforts of islanders to reduce their own “carbon footprints,” climate change is already happening here in the Salish Sea with enough force to disrupt our daily lives, our jobs and businesses, and our health and safety.

We do not need to establish boards and commissions to tell us what to do. NOAA, the EPA, and other scientifically-informed national agencies have been funding strategic research and engineering advice since the 1990s, and many communities across the country have been implementing federally funded climate-resilience plans that go beyond mere talk. Actions include relocating roads and utilities as well as using landscaping and habitat construction to help contain riparian and coastal flooding.

Four kinds of extreme weather events must be addressed in rebuilding our infrastructure: heat waves (including spikes in sea temperatures); extended summer droughts that are exacerbated by heat waves; extreme precipitation events like what we experienced this fall, resulting in destructive flooding as well as reduced infiltration to aquifers and increased turbidity and contamination of surface waters; and of particular concern for our islands, windier weather that downs power lines and causes tidal surges and coastal flooding, eroding coastal roads and utility corridors. Rising seas and reduced recharge rates for aquifers will worsen one of the islands’ most serious health and economic bottlenecks: potable water. Stormier winters will also pose challenges for the engineering of substitutes for groundwater including desalinization and rain catchment.

San Juan County was already vulnerable to these changes before the Covid-19 pandemic that has led to a sharp increase in our resident population, and thus in the local demand for electricity, communications bandwidth, and potable water. “Covid refugees” are moving us just a little bit faster towards a future in which islanders may become “climate refugees” due to frequent service disruptions that do not simply mean ferry cancellations, but also more frequent road washouts, blackouts, well failures, and shortages of fuel and food—not to mention rising costs of maintaining and insuring homes.

A rational county government would be busily working on relocating arterial roads and utility corridors, securely burying exposed power and communication lines, promoting distributed power generation and rain catchment engineered for future weather conditions, and investing in up-to-date, environmentally friendly technologies for defending shorelines where businesses and homes are at risk, such as habitat-building with sediments, plants, and shellfish beds rather than concrete, rocks and gravel.

As the islands look for climate resilient solutions, it will be critical to be informed by science and scientists that have specific knowledge of island conditions and how they have changed, with human intervention, for millennia. Sometimes the “obvious” or most talked-about fix is inapplicable to our local ecology, or is simply unsupported by empirical research. One example is managing wildfire.

Droughty summers have already resulted in an elevated risk of wildfire, and this risk will grow as island summers grow warmer and drier, as well as windier. Preemptive controlled burning is a poor substitute for clearing by hand (or with goats) and landscaping with firebreaks and fire-resistant plant species. The irony of burning woodlands and releasing considerable quantities of stored carbon into the atmosphere as a way of addressing climate change seems to have been lost on the islands’ public land managers. As U.S. Forest Service scientists have concluded, fire has not been a routine source of disturbance in Salish
Sea ecosystems for several thousand years—and indigenous islanders did not burn down the forests on which they relied for cedar lumber, and fuel to warm their plank houses and preserve their fish.

It is also imperative that the islands recognize and accept the requisite scale of an effective response to the current rate of climate change. This cannot be done on the cheap. Nor can it be delayed repeatedly, awaiting some future Public Works plan. An example is the Doe Bay road washout that was, in fact, the second time that the road bed was recently repaired where Doe Bay creek runs beneath Point Lawrence Road. Each time, the too-small perched culvert was replaced with a too-small perched culvert, despite the fact that the creek can accumulate enough force to make a short bridge span the most durable solution—not to mention the value of a bridge to the native Cutthroat Trout in that watershed, which I helped identify fifteen years ago. Yes, a bridge will cost more; and it will work better, for longer.

There is federal infrastructure money in the pipeline, some of it tagged for climate adaptation programs. In addition, San Juan County may want to consider that fact that the hot housing market stimulated last year by “Covid refugees” has reportedly added nearly a billion dollars to our property-tax base. Would it be too provocative to suggest that this added value be taxed for funds to keep our roads open, and our power and communications systems running, as we face a stormier future climate?


 

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