Greening the concrete jungle

Written by Corporate Knights

The production of steel, cement and aluminum collectively accounts for about 15% of global greenhouse gas emissions and demand for the industrial materials is on the rise. A handful of pilots are underway to develop zero or nearly-zero carbon versions of these carbon-heavy materials, but the pace of change is hampered by a dearth of investment.

Pilot examples include Sweden’s Hybrit, which aims to replace coking coal with hydrogen and electricity; Quebec’s Elysis, described as the world’s first carbon-free aluminum smelting process; and Carbicrete, also from Quebec, which is developing cement-free, carbon-negative concrete.

While still years away from commercialization, projects

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By Corporate Knights

Corporate Knights Inc. (CK) includes the award-winning business and society magazine Corporate Knights, as well as a CSR research division which produces corporate sustainability rankings, research reports and financial product ratings based on corporate sustainability performance. Its best-known rankings include the Best 50 Corporate Citizens in Canada and the Global 100 Most Sustainable Corporations. In June 2013, Corporate Knights was named “Magazine of the Year” by Canada’s National Magazine Awards Foundation.

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