Preferences, enablers, and barriers for 1.5°C lifestyle options: Findings from Citizen Thinking Labs in five European Union countries

Figures & data

Figure 1. Main phases of the CTL process, including an overview of methods and data collected.

Figure 2. Steps of the CTL event.

Figure 3. Average, highest, and lowest carbon-footprint data according to case county.

Figure 4. Mosaic plots illustrating frequencies of the acceptance of lifestyle options across (a) consumption domains, (b) main investment types, and (c) impact levels.

Table 1. Significance and strength of association between acceptance vs. rejection and different categorizations.

Categorization	p-Value	Significance	Cramér’s V	Strength
Consumption domain	≪0.01	Yes	0.36	Very strong
Main investment type	≪0.01	Yes	0.18	Strong
Impact level	≪0.01	Yes	0.19	Strong

Note: The significance is the interpretation of the p-value, and strength is the interpretation of Cramér’s V. The categorizations represent those shown in Figure 4. See also the section above on Data analysis.

Table 2. The five lifestyle options with the highest (above 90%) acceptance rates (see Supplementary Material I, Section E for average acceptance rates for all options).

Most preferred options
Lifestyle options	Consumption domain	Acceptance rate (all countries)	Below (B)/Above (A) average impact	Mainly financial investment (FI)/Mainly behavior change (BC)
1. I will install efficient lighting	Housing	100%	B	FI
2. I will switch to using energy-efficient household devices	Housing	97.8%	B	FI
3. I will avoid food waste at home	Nutrition	96.3%	B	BC
4. I will eat only as much food as I need to stay healthy	Nutrition	95.4%	B	BC
5. I will insulate my house	Housing	92.7%	A	FI

Table 3. The five lifestyle options with the lowest acceptance rates (see Supplementary Material I, Section E for average acceptance rates for all options).

Least preferred options
Lifestyle options	Consumption domain	Acceptance rate (all countries)	Below (B)/Above (A) average impact	Mainly financial investment (FI)/Mainly behavior change (BC)
1. I will switch to a vegan diet	Nutrition	14.4%	A	BC
2. I will choose shared housing	Housing	20.6%	A	BC
3. I will switch to a vegetarian diet and eat no more meat or fish	Nutrition	25.1%	B	BC
4. I will give up excess square meters (i.e., have a smaller home)	Housing	28.6%	A	BC
5. I will get a smaller pet if I get a new one	Leisure	34.9%	B	BC