It's very important to account for indirect costs too. - Harmful emissions killing thousands [1] - Degradation of environment such as water contamination. -

It's very important to account for indirect costs too. - Harmful emissions killing thousands [1] - Degradation of environment such as water contamination. - Geo-political implications. [1] - http://www.ehhi.org/reports/exhaust/summary.shtml http://www.ehhi.org/reports/exhaust/summary.shtml