Showing 1 ideas for tag "pollution"

City of Calgary Mayor's Innovation Challenge

GEM, C-ZER, RAZOR, & TEMPERING

GEM: GAS EXHAUST MITIGATION

Houses that use natural gas produce CO₂ and lots of it. The weeping pipe is installed on all new homes at a cost of around $50 a linear meter. The bulk of the cost comes from requiring the rock-slinger truck that provides the gravel. The pipe we all use is cheap, usually made from 100% recycled plastic, and often comes with a nylon sock that further prevents dirt from entering the pipe. This... more »

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