Sources

Pack one less pair of shoes?
Carbon Accounting Data, research conducted for Taylor

Bring and use a reusable water bottle?
Pacific Institute and Plastics Europe
Odabasi, Sevde Ustun. "PET Water Bottle: A Carbon Footprint Assessment". August 2016.

Bring and use a reusable coffee mug?
Hocking, Martin B. "Reusable and disposable cups: An energy-based evaluation". November, 1994.
https://blog.epa.gov/blog/tag/disposable-coffee-cup/
https://carbon-clear.com/files/cup_assessment.pdf

Register as a virtual attendee?
Carbon Accounting Data, research conducted for Taylor

Participate in your hotels linen reuse program?
Sustainable Lodging Program, 2004.

Choose chicken over beef for one meal?
http://www.waterfootprint.org/?page=files/Animal-products
https://www.ewg.org/meateatersguide/a-meat-eaters-guide-to-climate-change-health-what-you-eat-matters/

Choose a vegetarian option over beef?
http://www.waterfootprint.org/?page=files/Animal-products https://www.ewg.org/meateatersguide/a-meat-eaters-guide-to-climate-change-health-what-you-eat-matters/

Choose an apple over a banana for one snack?
http://www.waterfootprint.org/?page=files/productgallery&product=apple
http://www.waterfootprint.org/?page=files/productgallery&product=banana

Use a mobile app instead of a paper program?
Amy Vickers. Handbook of Water Use and Conservation. Alherst, MA: WaterPlow Press, 2001. 446 pp. ISBN 1-931579-107-5

Walk from your hotel to the conference center?
http://www.umich.edu/~umtriswt/EDI_sales-weighted-mpg.html

Turn off lights and heating/cooling in your hotel when you were away?
https://www.eia.gov/consumption/commercial/data/2012/

Take public transportation to/from the airport?
http://webarchive.nationalarchives.gov.uk/20130403211631/
http://archive.defra.gov.uk/environment/business/reporting/pdf/passenger-transport.pdf

Offset your airline carbon?
Carbon Accounting Data, research conducted for Taylor