Should Vancouver spend lots of today's cash preparing for 5.6 meters of CO2-induced sea level rise?

Report illustrates toll of climate change in Vancouver | Vancouver, Canada | Straight.com

Eileen Keenan, a research and sustainability adviser with Vancouver-based Bing Thom Architects, has partnered with local architect and colleague Andrew Yan in a new report offering a sobering analysis of what sea-level rise means to the region and what can be done to minimize damage the area will sustain by the year 2100.
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Keenan claimed that a local engineer provided estimates of $5,000 per metre for earth-mound dikes and about $10,000 per metre to build a seawall like the one in Stanley Park, and this is how the range of $255 million to $510 million was determined.

Keenan said that the compilation of various sea-level-rise scenarios, from one metre above sea level to 5.6 metres above sea level, was made possible due to Vancouver’s open-data initiative providing information for researchers like her and Yan.