Dear friends,21% of global emissions are captured in building materials and construction. The biggest culprit: concrete. Over the last 40 years concrete consumption per capita has tripled making it the most consumed humanmade material on Earth. Why? Concrete is simple to make, versatile, strong, and reflective. Concrete has only three ingredients: aggregate (sand, gravel, stone, etc.), water, and cement. Even though cement accounts for 10% of concrete’s volume, it is responsible for 90% of concrete’s carbon emissions. Cement is created through a high temperature, chemical process that emits carbon. This accounts for 7-8% of global carbon emissions. By 2060 the world population will double the amount of building floor space. To accommodate that growth, developers will be using more concrete. But what if there were greener alternatives for building better cities? Hope this gets you thinking,
Kate
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