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 Carbon offset FAQs
Calculate the carbon footprint of your itinerary
Book your travel and select the carbon offset contribution option
For questions regarding your contribution to Sustainable Travel International (STI) for carbon offsetting, please contact STI directly at the information below.
Email
info@sustainabletravelinternational.org
Postal mail
Sustainable Travel International
P.O. BOX 1313
Boulder, CO 80306
Phone
1-800-276-7764
Business hours: 8:00 a.m. - 5:00 p.m. Mountain time
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