 It is compliant with the approach for quantifying spend-based impacts defined in the Greenhouse Gas Protocol Corporate Value Chain Accounting and Reporting Standard.The tool utilizes the Comprehensive Environmental Data Archive (CEDA), a peer-reviewed EIO-LCA database with a base year of 2014.CEDA represents 389 industrial sectors, the commodities and the linkages between them, and over 2,700 environmental exchanges arising from them, including extraction of various natural resources, water consumption, land use, and emissions to air, water and soil.