cooling vs temperature change

cooling and temperature change both are nouns.

Word	Noun	Adjective	Verb	Adverb
cooling	Yes	No	No	No
temperature change	Yes	No	No	No

As nouns, temperature change is a hypernym of cooling; that is, temperature change is a word with a broader meaning than cooling:

cooling: the process of becoming cooler; a falling temperature
temperature change: a process whereby the degree of hotness of a body (or medium) changes

cooling (noun)	temperature change (noun)
a mechanism for keeping something cool	a process whereby the degree of hotness of a body (or medium) changes
the process of becoming cooler; a falling temperature