id	keyword
fbem-9859	carbon
fbem-9859	innovation
fbem-9859	green
fbem-9859	carbon trading
fbem-9859	enterprises
fbem-9859	technology innovation
fbem-9859	market
fbem-9859	carbon market
fbem-9859	policy
fbem-9859	control
fbem-9859	effect
fbem-9859	price
fbem-9859	level
fbem-9859	variables