Developed by the United Nations Environment Programme (UNEP), the Cleaner, More Efficient Vehicles Tool provides information and real-world examples of technology and policies used around the globe to improve auto fuel economy.

The co-processing of alternative fuels provides a solution in terms of reducing fossil fuel dependency as well as a contribution towards the lowering of emissions. The use of alternative raw materials also has numerous benefits, including a reduced need for quarrying and an improved environmental footprint of such activities. The use of alternative materials in the cement industry lowers global CO2 emissions and does not have a negative impact on production process emissions or on the environmental and technical quality of the final product.