cement is responsible for around 5% of global CO2 emissions very large Columbia University 5% of all man-made carbon emissions. Rubenstein estimated ref for about 5% also emits carbon generates nearly a ton of CO2 Emissions from the Cement Industry also emits carbon CO2 intensive industry for about 5% 5 percent of global CO2 emissions Rubenstein Emissions from the Cement Industry Earth Institute at Colombia University eine besonders kohlenstofflastige Industrie cement manufacturing generates nearly a ton of CO2 footprints estimated 5% of the total greenhouse gases Columbia University CO2 intensive industry this blog post concrete production State of the Planet cement burns fossil fuels and can release pollutants generates nearly a ton of CO2 concrete Columbia University 5% of the total greenhouse gases ref non-fossil-fuel-related chemical processes for about 5% accounts for 5 percent "Emissions from the Cement Industry" non-fossil-fuel-related chemical processes "Emissions from the Cement Industry" http://blogs.ei.columbia.edu/2... cement estimated 5 percent of global carbon dioxide emissions for about 5% cement manufacturing 5 percent the cement industry alone is responsible Earth Institute at Colombia University 5 percent of global carbon dioxide emissions concrete according to Columbia University's Earth Institute Emissions from the Cement Industry 5% of the world’s carbon emissions Emissions from the Cement Industry 5% of greenhouse gas emissions 5 percent of global carbon dioxide emissions. http://blogs.ei.columbia.edu/2... Columbia University estimated Columbia University 5 percent of the world’s carbon emissions concrete cement is responsible for around 5% of global CO2 emissions Emissions from the Cement Industry about 5 percent Emissions from the Cement Industry