paleoclimatology vs palaeoclimatology

paleoclimatology and palaeoclimatology both are nouns.

Word	Noun	Adjective	Verb	Adverb
paleoclimatology	Yes	No	No	No
palaeoclimatology	Yes	No	No	No

As nouns, paleoclimatology and palaeoclimatology are synonyms defined as:

paleoclimatology and palaeoclimatology: the study of the climate of past ages

paleoclimatology (noun)	palaeoclimatology (noun)
the study of the climate of past ages	the study of the climate of past ages