Recent heightened awareness of climate change issues has prompted corporations to pursue improvement in data reliability and further extend the scope of their efforts to grasp the extent of their greenhouse gas emissions. In response to such social expectations, the Carbon Disclosure Project (CDP), an organization promoting the disclosure of corporate greenhouse gas emissions, and the Electronic Industry Citizenship Coalition (EICC), which advocates the establishment of common environmentally and socially responsible procurement practices, have each initiated pilot projects to ascertain the volume of greenhouse gases emitted throughout the supply chain. Sony has participated in both projects, starting in fiscal year 2009 with trials conducted on the emissions from its main contracted original equipment manufacturers (OEM) and original design manufacturers (ODM). From this trial, the emissions from ODMs and OEMs associated with Sony products in fiscal year 2009 were partially captured, which amounted to be approximately 640,000 tons.

Looking ahead, Sony will expand the scope of application to include other suppliers and examine the methods it uses to ascertain greenhouse gas emissions throughout its supply chain.