Article content Cement literally serves as a building block for our ever-growing world, but it’s taking a steep toll on the environment. Cement — and its end product concrete — accounts for 7 per cent of global carbon emissions, with emissions from the industry expected to rise by 4 per cent globally by 2050, according to the International Energy Agency. Indeed, Bill Gates, the tech tycoon that’s now focused on resolving environmental issues, calls concrete among the “hardest” products to decarbonize. We apologize, but this video has failed to load. Try refreshing your browser, or How this Bill Gates and Jeff Bezos-backed Canadian startup is trying to 'cure' concrete's big carbon problem Back to video