So you want to use less concrete

The construction industry is (slowly) beginning to see increased focus on the environmental impacts of buildings and construction. One area that seems to be getting a lot of attention recently is the carbon emissions due to cement and concrete. This seems at least partly due to Bill Gates’ book “How to Avoid a Climate Disaster”, which talks about emissions from cement (and I’ve been told everyone in Silicon Valley read.) Cement production is a huge industry, and is responsible for somewhere around 5-10% of global CO2 emissions [0]. Because concrete is such a fundamental part of the built environment, it’s worth taking a look at this problem in the context of how, as a civilization, we use concrete.

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