Business Green: Pressure to curb carbon emissions is rapidly filtering down the corporate supply chain, according to a new report from the Carbon Disclosure Project (CDP) which found many of the multinationals that pioneered carbon reduction techniques are now turning their attention to their suppliers’ carbon footprints. The report, which will be released later today, surveyed 44 end-user companies, including global giants such as Dell, Juniper Networks, National Grid, PepsiCo and Reckitt …