The scenarios of IPCC s 4th Assessment Report SRES and 5th Assessment Report RCP are CO2 reduction to prevent warming caused by human production activities in deciding and applying GHG emission reduction policies by social and economic sectors. Is in a situation where we can t wait. The Korean government enacted the Framework Act on Low Carbon Green Growth in order to implement the goal of reducing greenhouse gas emissions in 2011 with the goal of 30% reduction of greenhouse gas emissions in 2020 . After completing the consent process for the Paris Agreement (COP21) on March 3, I submitted a consent form to the UN and participated. In order to reduce to 1.7 billion tons, which is the target of the COP21 Paris Agreement in 2050, a reduction of 78.7 billion tons (82%) is necessary, and the method according to this is as follows. 90% of the greenhouse gases emitted from Japan are CO2, and 1/3 of them are generated at factories, and global automakers, including Toyota and Nissan, need to build new eco-friendly production processes. According to a report conducted by the American Steel Recycling Institute(SRI:Steel Recycling Institute), Advanced High strength steel (AHSS) is the mild steel, aluminum, magnesium, and carbon fiber reinforced plastics as a result of lightweight vehicle body: life cycle greenhouse gas and energy research . It is presented as an efficient material. The weight reduction of finished automobiles produced in the eco-friendly automobile production process using the materials presented in this way can achieve the effect of reducing automobile emissions as well as reducing greenhouse gases in the automobile industry.