ClimateBiz: As climate change and greenhouse gas emissions move to the forefront of corporate awareness, leading U.S. businesses are starting to tie the non-financial performance of their companies to their compensation metrics, according to a 2008 study of S&P 500 companies. Data found in the Carbon Disclosures Project (CDP) Report 2008 on the S&P 500, which asked companies on that index to report and measure their greenhouse gas emissions, shows that 93 of 321 respondents — or nearly …