Carbon Strategy | Sustainable Development | CEMEX
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Sustainable Development

Carbon Strategy

Climate change is considered one of the most critical global challenges of our time. We acknowledge the local and global challenges posed by climate change, and are committed to applying our skills, technologies, and determination to reduce the contribution of our operations and our industry to climate change.

Climate change is caused by increasing concentrations of greenhouse gases, primarily CO2, in the Earth’s atmosphere. It is widely believed that this phenomenon is the result of human activity, including the burning of fossils fuels for energy and also emissions derived from a variety of agricultural and industrial processes. Minimizing climate change and its consequences is a critical global challenge.

The global cement industry produces about five percent of all manmade CO2 emissions.1 This greenhouse gas is generated chiefly in the production of clinker (the main ingredient in cement). Clinker is produced in large rotary kilns by processing limestone, clay, and other minerals under very high temperatures (>1,400 °C or 2,500 °F). CO2 results from the fuel combustion required to achieve such high temperatures and from the chemical decomposition of limestone into lime and CO2. Compared to these emissions, other sources, mainly the transport of raw materials and final products and emissions related to the generation of electricity that CEMEX consumes, are very small, but still offer an opportunity to reduce our total footprint.

Alternative Fuels

We are increasing our use of alternative fuels, such as chipped tires, household waste, and biomass such as animal meal, sewage sludge and agricultural waste... More

Renewable Energy

We are increasingly using renewable energy to generate power for our operations. We contract in wind, hydro power, and waste-to-energy projects that power our operations... More

Alternative Raw Materials

Another way in which we seek to reduce energy consumption in our cement operations is by using alternative cementitious materials to reduce the ratio of clinker to cement... More

Energy Efficiency

We have been working with our equipment suppliers and continue to implement cutting-edge technologies to improve the energy efficiency of our operations... More

CO2 Disclosure

We track and audit global carbon emissions annually, in line with the Greenhouse Gas Protocol developed by the World Business Council for Sustainable Development (WBCSD)... More

CO2 Offset Mechanisms

We have undertaken and registered several Clean Development (CDM) projects over the past years. Our full CDM portfolio, which now totals eight accredited projects, has the capacity to reduce our CO2 emissions by approximately 1.4 million tons annually. We expect to register additional CDM projects in the coming years... More


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