Table 1.

Estimations of ASLA Meeting Education Session Featured Speakers’ Travel-Related Carbon Dioxide Emissions

Year	Location	Speakers	Carbon Footprint (tCO₂)	Mean tCO₂ per Speaker, Carbon Footprint	Carbonfund, tCO₂	Mean tCO₂ per Speaker, Carbonfund	Mean tCO₂	Mean tCO₂ per Speaker
2019	San Diego	299	116.75	0.39	161.79	0.54	139.31	0.46
2018	Philadelphia	395	79.86	0.21	118.89	0.29	98.96	0.25
2017	Los Angeles	378	130.69	0.35	181.43	0.48	156.06	0.41
2016	New Orleans	369	110.46	0.30	146.40	0.40	128.43	0.35
2015	Chicago	355	80.23	0.22	106.76	0.30	93.50	0.26
2014	Denver	350	97.77	0.28	133.02	0.37	115.40	0.33
2013	Boston	338	84.66	0.25	122.27	0.36	103.47	0.31
2011	San Diego	337	132.54	0.40	184.05	0.55	158.99	0.48
	Total	2,821	832.96		1,154.61		994.11
	Mean	353	104.12	0.30	144.33	0.41	124.26	0.36