Abbreveatiom	Content
	BY	base year
	E_t	Emissions in the year t
	Gt	billion tons
	ISA	International Shipping + International Aviation
	LUC	Land-use change
	Mill. t	Million tons
	npLUC	net positive LUC
	P	Population
	R_t	Reducion amount in the year t
	RR_20	Reduction rate resp. change rate in year 2020
	RR_t	Reduction rate resp. change rate in year t
	t	year
	TV	threshold value