Whoops, turns out concrete is actually a carbon sink

Watts Up With That?

From the “settled science” department and the University or California Irvine, comes this inconvenient fact. For years we’ve been told by academics that cement is another nasty global warming contributor, because of CO2 released during production.

“Cement manufacturing is responsible for 5 to 8 percent of global CO2 emissions,” notes Del Gado, a theoretical physicist who is part of Georgetown’s Institute for Soft Matter Synthesis and Metrology. “Although there have been calls for creating so-called ‘green cement,’ the sustainability and science communities have yet to find a way to reduce CO2 emissions while retaining the efficiency, durability and cost efficiency of cement. Our study could help change that.”

Now, not so much.

Concrete jungle functions as carbon sink, UCI and other researchers find

Cement-based materials eventually reabsorb much of the CO2 released during creation

An international team of researchers including UCI Earth system scientist Steven Davis has found that over time, cement reabsorbs a significant portion of the CO2 emitted when the material was manufactured. CREDIT Steven Davis / UCI An international team of researchers including UCI Earth system scientist Steven Davis has found…

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