Clear Sky Digital Media

Because sustainability is becoming a critical area of focus for marketers, imc² worked closely with Jon Koomey of Stanford University and Cody Taylor of ICF International to develop Clear Sky Digital Media. Clear Sky Digital Media calculates the estimated cost to offset the carbon footprint of an online media campaign. The tool is a first step toward helping marketers identify the environmental impact of their online advertising efforts and how to appropriately offset that impact.

How to Use the Tool

To calculate the cost to offset an online media campaign's carbon footprint, enter the File Size and Impressions data fields. The first three columns are optional. However, selecting an option from the drop-down menu under Unit Type will populate the corresponding File Size (except Hi K Video and Other, which require manually inputting the file size). Once the required data is entered, click "Add" and the tool will automatically calculate the total file size, the carbon footprint, and the cost to offset the campaign.

See an example of how the tool works.

Site NameDimensionsUnit TypeFile Size*Impressions*Total 
 KB  
*Required Fields (Data entered on this page will NOT be saved or collected for any purpose)

CO2 Impact (carbon footprint of the plan)

Total Media Plan File Size (GB): 0
CO2 Impact Assumption(lbs/GB):  
CO2 Impact (lbs): 0.00
CO2 Impact (metric tons): 0.00
Cost to Offset a metric ton:  

Cost to Offset:

$0.00

To learn more about how to offset the cost of an online media campaign, email or call 212-430-3282.

Read about the methodology behind the tool.


Various Assumptions of Carbon Impact: lbs CO2/GB
Comscore Data Flow 33.9
MINTS Low Data Flow 22.2
MINTS High Data Flow 12.8
Average 22.96666667
1 pound = 0.00045359237 metric tons
Various Assumptions of
Cost of CO2 Credits
($/metric ton)
Cost of Offset (high estimate) 20
Cost of Offset (low estimate) 5
Average 12.5