palaeoclimatology vs paleoclimatology

palaeoclimatology and paleoclimatology both are nouns.

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

As nouns, palaeoclimatology and paleoclimatology are synonyms defined as:

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

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