id	keyword
ajst-14332	carbon
ajst-14332	foreign
ajst-14332	investment
ajst-14332	emissions
ajst-14332	carbon emissions
ajst-14332	china
ajst-14332	effect
ajst-14332	country
ajst-14332	region
ajst-14332	dioxide
ajst-14332	structure
ajst-14332	level