/PRNewswire/ - AT&T* announced today that it has been included in Carbon Disclosure Project's (CDP) Carbon Disclosure Leadership Index (CDLI). The CDLI recognizes the top companies by category in the S&P 500 (53 total) that provided the most comprehensive responses, in terms of the depth and breadth of their answers. The survey - sent to more than 4,700 of the world's largest corporations - collects data on greenhouse gas (GHG) emissions as well as risks and opportunities associated with climate change. CDP conducted the survey on behalf of 534 institutional investors holding $64 trillion in assets under management, and 60 purchasing organizations.

"We are honored by this recognition and know that effective emissions data management requires a commitment to driving sustainability throughout our company," said Charlene Lake, senior vice president and chief sustainability officer, AT&T. "From the board room to our front line employees, we strive to be vigilant about understanding the impact our business has on the world around us."

Paul Dickinson, Chief Executive of the Carbon Disclosure Project, commented:

"The Carbon Disclosure Leadership Index recognizes companies that demonstrate good internal data management practices for understanding greenhouse gas emissions, including energy use. Companies that make this index have also demonstrated clear consideration of how climate change is impacting and will impact their business. As companies' understanding of climate change issues grows, they are better placed to take positive action to manage and mitigate its risks."

The S&P 500 Report including names of companies featured in the Carbon Disclosure Leadership Index can be found at www.cdproject.net.

AT&T is committed to sustainable business practices across its business. Earlier this month AT&T was included in the 2010 Dow Jones Sustainability North America Index (DJSI). One of the world's most recognizable sustainability indexes, the DJSI North America is based on a rigorous analysis of corporate, economic, environmental and social performance. The index tracks the performance of the top 20 percent of the 600 biggest North American companies in the Dow Jones Global Total Stock Market Index that lead the field in terms of sustainability.

About CDP
The Carbon Disclosure Project (CDP) is an independent not-for-profit organization holding the largest database of primary corporate climate change information in the world. Thousands of organizations across the world's largest economies now measure and disclose their greenhouse gas emissions and climate change strategies through CDP, in order that they can set reduction targets and make performance improvements. This data is gathered on behalf of 534 institutional investors, with combined assets under management in excess of $64 trillion, as well as purchasing organizations and government bodies and made available for integration into business and policy decision making. For more information visit www.cdproject.net.

Visit www.att.com/csr and www.att.com/sustainability to learn more about sustainability at AT&T. Also visit www.att.com/csr to download the full 2009 Citizenship & Sustainability Report.

*AT&T products and services are provided or offered by subsidiaries and affiliates of AT&T Inc. under the AT&T brand and not by AT&T Inc.

About AT&T
AT&T Inc. (NYSE: T) is a premier communications holding company. Its subsidiaries and affiliates - AT&T operating companies - are the providers of AT&T services in the United States and around the world. With a powerful array of network resources that includes the nation's fastest mobile broadband network, AT&T is a leading provider of wireless, Wi-Fi, high speed Internet and voice services. A leader in mobile broadband, AT&T also offers the best wireless coverage worldwide, offering the most wireless phones that work in the most countries. It also offers advanced TV services under the AT&T U-verse® and AT&T | DIRECTV brands. The company's suite of IP-based business communications services is one of the most advanced in the world. In domestic markets, AT&T Advertising Solutions and AT&T Interactive are known for their leadership in local search and advertising. In 2010, AT&T again ranked among the 50 Most Admired Companies by FORTUNE® magazine.

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