General assumptions: Generously filled bath. Water heated by solar energy.
Material is included.
Production is included.
Distribution is included.
Carbon footprint of water is negligible.
End of life is not included.
Arrignton, D. (2014). Showers vs. baths: Which use less water? URL:https://www.sacbee.com/news/california/water-and-drought/article2591077.html
Berners-Lee, M. (2011). How bad are bananas?: the carbon footprint of everything. Greystone Books. ISBN: 1553658329, 9781553658320
Berners-Lee, M. (2010). What's the carbon footprint of ... using a mobile phone? URL: https://www.theguardian.com/environment/green-living-blog/2010/jun/09/carbon-footprint-mobile-phone
Center for alternative technologies (2020). Reducing water use. URL: https://www.cat.org.uk/info-resources/free-information-service/water-and-sanitation/reducing-water-use/
Callard, S. (2007). Is it worth it? Taking a shower instead of a bath. The Telegraph. URL: https://www.telegraph.co.uk/culture/3665710/Is-it-worth-it-Taking-a-shower-instead-of-a-bath.html
Hamamoto, M. (2013). Energy-saving behavior and marginal abatement cost for household CO2 emissions. Energy policy, 63, 809-813.