INDIANAPOLIS, Sept. 25, 2013 /PRNewswire/ -- Simon Property Group, Inc. (NYSE: SPG ), a global leader in retail real estate, today announced two significant achievements recognizing its ongoing leadership and commitment to sustainability and energy conservation. Simon Property Group has been named to the 2013 CDP Global 500 Climate Disclosure Leadership Index (CDLI). This annual index highlights FTSE Global 500 companies that demonstrate leadership through disclosure of information regarding climate change and score within the top 10% of the five hundred companies assessed. This is the third time Simon Property Group has been awarded the CDLI distinction due to its top score on disclosure of green house gas emissions and energy use, and SPG is the only real estate company included in 2013. Simon Property Group has also been named to the S&P 500 Climate Disclosure Leadership Index five times.