Clean Diesel Technologies has developed a few cool technologies to counteract global warming. The company is starting to commercialize its chemical fuel additives and other products for reducing diesel engine emissions and improving fuel economy. These include its platinum fuel catalysts, which are marketed in Europe and the US under the Platinum Plus brand. Clean Diesel Technologies also manufactures and licenses nitrogen oxide reduction systems (under the brand name ARIS) and chemical fuel additives to help control diesel engine emissions. The company has a licensing deal with Mitsui to use the ARIS technology.