California with it's California Climate Action Registry will be the first US effort to legally mandate GHG reporting, here for the largest emitters in California (around 800 I believe).
With public disclosure and more mandatory reporting, reporting veracity becomes paramount. What is the definition of "material" emissions to include or exclude? Do firms not have incentive to 'pad' their baseline year with extra GHG in order to later receive accolades for reductions in the future? How can firm-to-firm comparisons be reliability calculated and used. As the calculation of profit from revenue and costs and it's associated eco-system of auditors GAAP rules and government oversight, a similar system for GHG will need to be developed if reporting is to have any truth and comparability.
|Company||000 metric tons CO2|
|American Electric Power||145,400|
|Eastman Kodak Company||1,856|
|Bank of America Corporation||1,380|
|Advanced Micro Devices||341|