full article here: guardian.co.uk
This study, conducted by Trucost shows that the externalities resulting from a lack of direct cost to environmental impact are enormous.
The Guardian astutely points out "The true figure is likely to be even higher because the $2.2 trillion does not include damage caused by household and government consumption of goods and services, such as energy used to power appliances or waste [and more].
Ceres also points out that bigger danger "is the risk that companies simply run out of resources they need to operate"