id	keyword
esrj-103152	climate
esrj-103152	earth
esrj-103152	et al
esrj-103152	global
esrj-103152	mass
esrj-103152	extinction
esrj-103152	change
esrj-103152	evolution
esrj-103152	years
esrj-103152	time
esrj-103152	ipcc
esrj-103152	warming