WTTC	World Tourism Council
GDP	Gross domestic product
ZMET	Zaltman metaphor elicitation technique
MEC	Means-end chain
TPB	Theory of planned behavior
TRA	Theory of reasoned action
SN	Subjective norm
PBC	Perceptual behavior control
REB	Responsible environmental behavior
REBI	Responsible environmental behavioral intention
IBS	Inquiry-based science
ExE	Experiential education
OE	Outdoor education
GBL	Garden-based learning
RPII	Revised Personal Involvement Inventory
ATEB	Attitudes toward environmental behaviors
EE	Situational Environmental Education
CFA	Confirmatory factor analysis
HVM	Hierarchical value map
A-R-V connections	Attitude-Result-Value connections
ESD	Education for sustainable development
EP	Environmental protection
CR	Composite reliability
AVE	Average variance
NAT	The norm-activation-theory
VR	Virtual reality