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. 2025 Aug 19;13:e19811. doi: 10.7717/peerj.19811

Table 3. Total CO2 emissions from the 15th International Coral Reef Symposium 2022.

Detailed overview of emissions by category. The energy category comprises all Greenhouse Gas Protocol scope 2 emission sources (electricity, heating, cooling, and online attendees).

Category tCO2
Travel of participants 1,139.8
Catering 94.2
Hotels 79.3
Energy 36
Additional items 4.4
Public transport 1.9
Waste 0.3
Total 1,355.9
+ 10% SAFETY MARGIN 1,491.5