CDLI Background
The Carbon Disclosure Leadership Index (CDLI) assesses the quality and depth of a company’s response to the annual CDP questionnaire. A high score indicates good internal management of data related to greenhouse gas emissions and a thorough understanding of the issues that climate change presents to the company's business.

CDLI methodology
CDLI scores are calculated according to a standardized methodology developed in conjunction with Pricewaterhouse Coopers. The methodology measures whether, and how well, a company responds to each question. A company is awarded points if it reports its greenhouse gas emissions, but the actual amount of emissions does not affect its score. For further details, visit here

The top scoring companies are cross-listed below according to the following geographic market indices:

Worldwide: Global 500
USA: S&P 500

Sector : Company : CDLI Score
Consumer
Discretionary Carnival 87
BMW Bayerische Motoren Werke 79

Consumer Staples
Wal-Mart Stores 89
Woolworths 82
Reckitt Benckiser 80

Energy
Chevron 88
Spectra Energy 88
Hess 86
Total 81
Anadarko Petroleum 79
Transocean 79

Financials
HSBC Holdings 92
Bank of Montreal 87
Simon Property Group 86
Hammerson 84
Allianz 83
Australia and New Zealand Banking Group 82
National Australia Bank 82
Commonwealth Bank of Australia 81
Aviva 80
Lloyds Banking Group 80
Westpac Banking 80
Allstate 79

Health Care
Bayer 95
Allergan 85
Schering-Plough 85
Biogen Idec 83
Johnson & Johnson 83
GlaxoSmithKline 79

Industrials
Boeing 87
Burlington Northern Santa Fe 85
Siemens 85
United Parcel Service 82

Information Technology
Cisco Systems 88
Samsung Electronics 87
Hewlett-Packard 86
EMC 82

Materials
BASF 94
Rio Tinto 87
Lafarge 84
Praxair 83
BHP Billiton 82
E.I du Pont de Nemours 80

Utilities
PG&E 88
Public Service Enterprise Group 88
Union Fenosa 86
Centrica 84
RWE 83
FPL Group 82
Consolidated Edison 79
Fortum 79

USA: S&P 500 (2009)
Geographic market index for the 500 largest US companies (measured by market capitalization)

Consumer Discretionary
Carnival 87
News Corporation 75
Stanley Works 75
Limited Brands 74

Consumer Staples
Wal-Mart Stores 89
Dean Foods 87
Colgate-Palmolive 77
H.J. Heinz 75

Energy
Chevron 88
Spectra Energy 88
Hess 86
Anadarko Petroleum 79
Transocean 79

Financials
Comerica 91
Simon Property Group 86
Hartford Financial Services 81
Allstate 79
Bank of New York Mellon 78
Franklin Resources 77
JPMorgan Chase 74

Health Care
Allergan 85
Schering-Plough 85
Biogen Idec 83
Johnson & Johnson 83
Pfizer 75

Industrials
Boeing 87
Burlington Northern Santa Fe 85
Eaton 85
United Parcel Service 82

Information Technology
Cisco Systems 88
Hewlett-Packard 86
Advanced Micro Devices 82
EMC 82
Intel 78
Autodesk 77
IBM 77
LSI 76

Materials
Praxair 83
PPG Industries 81
E.I du Pont de Nemours 80
Air Products & Chemicals 74

Utilities
PG&E 88
Public Service Enterprise Group 88
Pepco 87
Xcel Energy 85
DTE Energy 84
FPL Group 82
Consolidated Edison 79
Entergy 78

Source