id	keyword
ajee-3243	economic
ajee-3243	growth
ajee-3243	environmental
ajee-3243	emissions
ajee-3243	carbon
ajee-3243	degradation
ajee-3243	nigeria
ajee-3243	energy
ajee-3243	co2
ajee-3243	investment
ajee-3243	dioxide
ajee-3243	relationship
ajee-3243	trade
ajee-3243	kuznets