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Two Ice Boxes. One is built to code; the other is built to the Passivehaus standard. With identical blocks of ice contained inside and visible through a window, the rate of melt will vary over time due to the construction quality. This demonstrates the POWER of building as CLIMATE ACTION.
Passivehaus creates high performance buildings which conserve energy by reducing the amount needed to heat and cool spaces. With a more consistent thermal environment, the ice will demonstrate this stability.
The Ice Box Challenge has been used globally many times, including London, Brussels & Vancouver. This display is a collaboration with Vancouver who has codified Passivehaus into their building standards and sets a precedent Seattle can follow.