“New approaches could reduce the carbon-intensity of cement production and lessen concrete’s broader environmental impact.”
“After years of slow headway, building design and industry professionals say sharp reductions in the climate impact of concrete are possible now. That is significant because cement, the critical glue that holds concrete together, is so carbon-intensive that if it were a country, it would rank fourth in the world as a climate polluter.
The Global Cement and Concrete Association this year committed to zero emissions concrete by 2050. No single solution has surfaced to reach this goal. But an expanding set of data tools and departures from tradition are starting to add up.
Take LinkedIn’s new headquarters in Mountain View, California, which eliminated 4.8 million pounds of carbon dioxide that would have been embedded in the new building, much of it by cutting back on cement. Jenny Mitchell, the company’s senior manager of design and build, works under the gun — parent company Microsoft has committed to removing all its historic carbon from the atmosphere. “